Activities to do in the science world: Activity 1- 13

Students can do the activities at home or we can use them in our shows: 14 -21

We can make a flap book for water trivia.

Activity 1: Play Water Trivia!

For each numbered question (1-10) find the letter of the correct answer (A-J). Answers are at the bottom of the page.

1 - How long can a person live without water? ______2 - How much water pipe is there in the US & Canada? ______3 - What were the first water pipes made of in the US? ______4 - How much water is used in a 5-minute shower? ______5 - How much water does one person use in a day? ______6 - How much of the earth's surface is water? ______7 - How much of the earth's surface water is drinkable? ______8 - Water freezes at what temperature? ______9 - Water boils at what temperature? ______10 - How much of the human body is water? ______ 

A - Hollowed out logsB - 80%C –about 1 weekD - 66%E - 1%F - 32 degrees F, 0 degrees CG - About a million miles or enough to circle the earth 40 timesH - 25-50 gallonsI - 212 degrees F, 100 degrees CJ - 50 gallons 

Answers

1-C, 2-G, 3-A, 4-H, 5-J, 6-B, 7-E, 8-F, 9-I, 10-D

Resource for the facts provided above or you can use other facts from the same resource if you want: http://media.mgbg.com/wkrg/photos/weather/downloads/Water_Facts.pdf

Activity 2: Word Search Puzzle

Find these water related words in the box below. Words may read up and down, sideways, or diagonally. They may also be backwards or upside down!

RAIN, WATER, CYCLE, FAUCET, ICE, CLOUD, DRIP, ONTARIO, GALLON, LAKE, MCWA, WASH, DRINK, PUDDLE, SAVE, HOSE, STEAM, FILL

Note: you can change the words based on your activities, so that kids know the words. This activity is to solidify the facts you already provided in your previous activities. This activity can serve as an example for you!!

Activity 3: Broken/bent stick

What you need:

A stick

What to do:

Put the stick half in the water and look at the area where you see the water level.

What is happening?

Stick appears to be bent; however it is not bent actually.

What is happening?

We are seeing an image from below the water that is above the real position of the stick - due to the way light is refracted towards the viewer as it leaves the water surface.

The same effect happens in a swimming pool - the water looks shallower than it really is because the image of the pool bottom appears higher through the water than it really is.

Light is refracted away from the normal line into a more horizontal direction as it passes out through the water surface. Therefore, light from the stick below water enters the viewer's eye less steeply than it otherwise would. As the brain locates the position of an image from the direction rays have as they enter the eye, rays entering from a more horizontal direction are judged to have come from a source that is higher up in the water than it really is.

Because light from the stick part above water is not affected by refraction, the brain interprets the whole stick as bent (slightly upwards) at the point it enters the water. You can put a penny inside the water and it will appear higher than actually it is due to the same reason.

(It's called refraction. It occurs when light strikes a medium different than air such as water. When light goes from one material (AIR) into a different material (WATER), its beams BEND.This bending of light beams is what causes the straw/pencil to look broken! This bending is called REFRACTION)

Activity 4: Floating and sinking soda cans

Imagine a hot summer day. You’re at a picnic and go to the ice chest where the sodas are staying nice and cool. Which cans are floating in the ice water, and which have sunk to the bottom?

What you need:

• Unopened cans of regular soda of different varieties ( if possible have the small size as the tank is not that deep)• Unopened cans of diet soda of different varieties• Water tank

What to do:

Place a can of regular soda into the water. Make sure that no air bubbles are trapped under the can when you place it in the water. Does it sink or float? Repeat the experiment with a can of diet soda. Does it sink or float?

What is happening?

Why does one can sink, and the other can float?

The cans of soda have exactly the same volume, or size. But their density differs due to what is dissolved in the soda. Regular soda contains sugar as a sweetener. If you look at the nutrition facts on a can of regular soda, you will notice that it contains sugar...a lot of sugar. In some cases, a 12 ounce can of regular soda will contain over 40 grams of sugar. Diet sodas, on the other hand, use artificial sweeteners such as aspartame. These artificial sweeteners may be hundreds of times sweeter than sugar, which means that less than a few grams of artificial sweetener is used in a can of diet soda. The difference in the amount of dissolved sweeteners leads to a difference in density. Cans of regular soda tend to be denser than water, so they sink. Cans of diet soda are usually less dense than water, so they float.

Are there any varieties of regular soda that will float? Are there any varieties of diet soda that sink? Can you think other factors that might influence which sodas float or sink?

Activity 5: Cause a soy sauce packet to float or sink on command! Brian already have it

What you need:

• 1 soy sauce packet • water • a 1 or 2 liter clear plastic bottle

What to do:

Place the sauce packet in a bowl or cup of water to see if it will float. For this experiment you will need a packet that just barely floats.

Take a packet that barely floats and put it in the clear plastic bottle (you may need to fold it in half lengthwise to get in through the opening). Fill the bottle to the brim with water and screw the cap on tight. Squeeze the sides of the bottle. What happens?

What is happening:

The packet has a small bubble of air trapped in it. When you squeeze the outside of the bottle, you increase the pressure inside the bottle. This will compress the air inside the packet, which changes the overall density of the packet. When the air is compressed enough, the density of the packet will be greater than the density of the water in the bottle, and the packet will sink. When you release the pressure on the outside of the bottle, the air in the packet will expand, increasing the buoyancy of the packet, and the packet will rise to the top. If you are using a clear soy sauce packet, you may even be able to see the size of the air bubble change as you squeeze on the bottle. (make a link with the other two similar exhibits in eureka)

Activity 6: Boat competition

What you need:

Self made or already made different sizes of boats (you do not need to follow origami instructions to make boats for competition , Brian’s design is really good, it holds a lot of pennies in it, so maybe he can arrange the instructions to make the boat, however I have given the instructions for one origami boat Appendix 1.1, 1.2, 1.3)

A lot of pennies

Rules:

1. Activity time: 15 min2. Groups of two or one3. One aluminium sheet will be provided only

What to do:1. Take a boat or make your own boat.2. Put it in the water.3. Start putting pennies in the boat one by one (if you put a lot of pennies all at once your boat will

sink).4. Count your pennies one less than when your boat sinks.5. If you put more than science world record then show it to any science world staff (any blue shirt

or any volunteer). He/she will change the record.6. If you made your boat you can take it home.

Extension:

1. Take a penny, put it flat on the water surface very carefully and observes what happens.2. Now take the same penny, put it on the water on the side and observe what happens.

Questions to think about:

1. Why boat containing a lot of pennies does not sink?2. Why when penny was put flat on the surface sometimes does not sink?3. Why penny on the side always sinks?

What is happening?

The boat displaces a volume of water with a weight equal to the weight of the boat that is floating, so boats are shaped the way they are to displace enough water to keep them above the surface. (Archimedes principle)

http://scifun.chem.wisc.edu/homeexpts/homeexpts.html

Activity 7 and 8:

1. How to make origami boats from the aluminium sheets or paper or any other good material suitable for boats

2. Para shoot sheet was wonderful today…we can do that too..3. Make the aluminium boat move or stop with the help of a balloon.

What you need:

1. Aluminium foil paper or any other suitable material to make a boat2. Instructions3. A balloon filled with air

What to do:

1. Follow the instructions to make an origami boat out of aluminium foil paper (Appendix 1.1, 1.2, 1.3 at the very end)

2. Take the balloon(dry balloon works better), rub it with your hair.(your hair should be dry and should not be containing any oil or conditioner to give you more effect, it is good if the day is not humid)

3. Now put your boat in the water, move the balloon close enough to the boat, but do not touch it with the balloon.

Now try this:

1. Move the balloon and see what happens.2. If water is moving in one direction and boat is moving along with the water, try to put the

balloon on the opposite direction of water flow and see what happens.

What is happening?

Due to magnetic induction, charged balloon induces charge on the boat which is an opposite charge. As laws of static electricity state that opposite charges attract, the boat was attracted towards the oppositely charged balloon so it was following the balloon.

Activity 9: Dancing water stream

What you need:

A water bottle with one hole on the side A charged balloon

What to do:

1. Fill the bottle with water and close the lid tightly.2. Now loose the lid slowly and see what happens near the hole.3. Now charge rub a balloon with your hair and move the balloon close enough to the water so

that it is not touching the water stream but it is very close.4. Move the balloon here and there and see what happens.

What is happening?

If you don't punch two holes, the water trying to get out will be resisted by the pressure of the air trying to get in.

But when we lose the lid, the air can go inside through the mouth of the bottle, water can do what it likes without interference from the air, and vice versa. More the air entering from the mouth, more the pressure would be on the water stream and it will go further.

Now, there is a thin stream of water coming out of the hole, if you rub a balloon with your hair, it gets charged, and by magnetic induction it induces opposite charge on the water stream. Therefore, water stream gets attracted by the balloon and dances with the motion of the balloon.

Activity 10: Needle through a balloon

Have you ever seen someone pop a balloon with a needle? Is it possible to stick a needle through a balloon without popping it?

What you need:

• Balloons • long wooden or metal skewers • petroleum jelly • a sharp pin • cellophane tape

What to do:

Blow up a balloon – not too full – and tie the opening shut. Dip the tip of a skewer in Vaseline and spread the Vaseline along the entire length of the skewer. If you are careful, you should be able to push the skewer all the way through the balloon without popping it. Insert the skewer with a gentle twisting motion into the end of the balloon opposite the knot. Continue pushing and twisting the skewer until the tip emerges from the other end, near the knot. Why doesn't the balloon pop?

Now try to stick the skewer into the side of the balloon. What happens?

What is happening?

The rubber in the balloon consists of many long molecules that are linked together. It's similar to the way all of the noodles in a plate of spaghetti stick together. These long molecules are called polymers; when molecules of a polymer are chemically attached to each other, it is called cross-linking. These links hold the polymer molecules together and allow them to stretch…up to a point. When the force or tension pulling on the cross-links is too great, they will break, and the polymer will pull apart.

Look at the rubber near the ends of the balloon where you first inserted the skewer. Does it look lighter or darker than the rubber in the rest of the balloon?

The rubber at the ends of the balloon is stretched out less than in the middle of the balloon. Therefore, there is less force pulling on it. This allows the tip of the skewer to break some polymer cross-links, push aside the molecules of rubber, and slide into the balloon. However, enough cross-links remain so that the balloon holds together.

In the side of the balloon, there are fewer polymer molecules. When you push the tip of the skewer through the rubber in the side of the balloon and the skewer breaks a few of the cross-links, the tension on the remaining cross-links is too great, and the balloon pops.

Do you think there is a way to stick a sharp pin through the side of a balloon without popping it?

Put a small piece of cellophane tape on the side of the balloon and press it down well. Now take the pin and press it through the tape and into the balloon. Does the balloon pop?

The tape sticks to the rubber in the balloon and will not allow the rubber to stretch to the breaking point when the pin pierces the balloon. In other words, the tape reinforces the cross links, and the balloon stays together.

Resources: http://scifun.chem.wisc.edu/homeexpts/homeexpts.html

Activity 11 and 12 : Paddle boat and balloon powered boat and are already on science world resource website. Link is given below:

http://www.scienceworld.ca/make-stuff/trythisathome

Activity 13: Soap powered boat

Soap propelled boat: Can you make a boat speed through the water with just a drop of soap? Try this project to find out!

What you need:

Index card Liquid dish soap

What to do:

Cut the index card into the shape of a boat with a notch in the back, just like the diagram.

Fill a shallow pan, sink, or bathtub with water and set your boat on the surface.

Pour a few drops of dish soap in the notch at the back of the boat.

What's happening?

Surface tension is the property that makes the surface of water appear to have a sort of elastic "skin," and is caused by the way water molecules are more attracted to each other than to the air. When your boat sits in the water the surface tension is the same on all sides. When you put the drop of soap near the back, however, the soap molecules break the water's surface tension. The force of the surface tension pulling on the front of the boat is now greater than the force pulling behind, so the boat moves forward. (Make sure you use clean water if you try again; it won't work if the water is already soapy.)

Do it home activities

Activities 14: You can "make" water!

Water is a chemical. It's made of two gases, hydrogen and oxygen. Water acts like a gas sometimes (when it evaporates) but we usually think of water as a liquid – something wet.

You can make hydrogen and oxygen join to form water. Here's how.

What you need:

a birthday candle a plate a clear drinking glass a match or lighter an adult to help you with the match or lighter

What you do:

1. Set the birthday candle on the plate and light it (ask an adult to help). 2. Cover the burning candle with the clear glass (it should be large enough to cover the whole candle). 3. When the candle goes out, look closely at the inside of the glass. What do you see?

What is happening?

The tiny drops of liquid inside the glass are water! The hydrogen in the candle joined with the oxygen in the air to form water. The candle flame went out when all of the oxygen in the air inside the glass was used up.

Extension:

Wood, paper, natural gas, heating oil, and gasoline all contain hydrogen, which joins with the oxygen in the air as they burn. Do you think burning any of these fuels will form water?

Activtiy 15: You can pull water out of thin air!

Water can be a gas (water vapor) that's part of the air around us. You can't see it, so how do you know it's there? Try this.

What you need:

a drinking glass water ice cubes

What you do:

1. Fill a dry glass with ice cubes and water. 2. Go and do something else for about 15 minutes. 3. When you come back, look at the outside of the glass. 4. Run your finger over the outside of the glass. What do you feel?

What is happening?

The tiny drops on the outside of the glass are water that has condensed from the air. Some of the water vapor in the air changed to liquid when it touched the cold glass. What do you think will happen if you empty the glass and let it stand? Where does the water in a puddle go when the sun comes out?

Activity 16: You can make your own rain gauge!

Maybe you've heard on the weather that an inch of rain fell in the last storm or a half-inch of rain might fall tomorrow. A rain gauge is a tool that measures the amount of rain that falls.

You can make a rain gauge to find out how much water falls in your yard (or anywhere else!) the next time it rains.

 

What you need:

a clear plastic soda bottle a pair of scissors a permanent marker with a sharp point small stones or aquarium gravel water ruler

 What you do:

1. Cut off the top part of the bottle (you may want to ask an adult to help).2. Fill the curved part of the bottom of the bottle with small stones or aquarium gravel. This will weight your rain gauge to keep it from falling over.3. Pour enough water into the bottle to cover the stones. Use the marker to draw a line at the top surface of the water. 4. Mark a "0" next to the line. This is your baseline.5. Use the ruler and marker to measure 1", 2", and 3" up the bottle from the baseline. Draw a line at each inch mark and label the lines. (Tip: you may want to empty the water out of the bottle before doing this, so you can lay the bottle on its side to measure.)6. Use the ruler and marker to measure and mark ½", 1 ½", and 2 ½".7. If you want to make your rain gauge more accurate, use the ruler and marker to measure and mark ¼", ¾", 1 ¼", 1 ¾", etc. on the bottle.8. Wait for rain!9. When the weather forecast predicts rain, or rain starts falling, add water to your rain gauge up to the baseline.10. Put the rain gauge outside to catch the rainwater. 11. When the rain stops, check to see how many inches of rain fell into your rain gauge!

You may want to make a chart to keep track of how much rain falls in a week or a month. On the chart, list the date it rained and how many inches of rain fell. Add up the rainfall at the end of the week or month.

Important! Be sure the rain gauge is filled to the baseline before you begin collecting.

Activity: 17 You can clean dirty water!

One of the steps in making lake water clean and pure is called filtration. How does it work? Try this.

What you need:

a paper towel scissors a funnel clean sand (from the beach or the sandbox) 2 clear glasses or jars a spoon water dirt from the back yard

What you do:

1. Cut a circle from the paper towel. Fold it in half, then in half again. 2. Open the folded circle a little to make a paper cone. 3. Put the cone inside the funnel and set the funnel in one of the glasses or jars. 4. Fill the cone with clean sand. 5. Fill the other jar with water. Add 3 or 4 spoonfuls of dirt to the water and stir it. 6. Slowly pour the muddy water into the sand in the funnel. 7. Look at the water coming out of the funnel.

What is happening?

The funnel filled with sand is a filter. What happened to the dirt as the muddy water passed through the filter? Is the water in the bottom jar clear? Or is it still a little bit muddy? If it still looks muddy, the dirt particles were small enough to pass through the spaces between the sand in the filter.

That's why more than one kind of filtration is used at the water treatment plant. Do you think your sand filter would remove germs from the water? (Hint: how big are germs?)

Water treatment removes dirt and germs from lake water  

Activity 18: You can make water "grow"!

When water gets cold enough it turns into a solid. Then we call it ice. Want to see water grow?

What you need:

a small cardboard milk carton (save one from your lunch at school) water a stapler a freezer

1. Clean out the milk carton.  2. Fill the carton all the way to the top with water. 3. Staple the top of the carton shut. 4. Put the carton full of water in the freezer overnight. 5. Look at the carton full of ice.What is happening?Is your carton full of ice – or more than full? Does the frozen or solid water take up more space than the water you started with? When water freezes it expands, or takes up more space than it did as a liquid. 

 

The water on the earth today is the same as the water that was here when the Earth was formed and when the dinosaurs

lived. We keep using the same water over and over and over. 

Activity 19: You can make a miniature water cycle!

You've seen that water can be a liquid, a gas, or a solid. Outside, water is always changing from liquid to gas and back again. This process is called the water cycle. You can see how the water cycle works.

The Water Cycle 

 The sun's heat makes water evaporate from streams, lakes, rivers, and oceans. The water vapor rises.

When it reaches cooler air, it condenses to form clouds. When the clouds are full of water, or saturated, they release some of the water as rain.

 

What you need:

a large metal or plastic bowl a pitcher or bucket a sheet of clear plastic wrap a dry ceramic mug (like a coffee mug) a long piece of string or large rubber band water

What you do:

1. Put the bowl in a sunny place outside. 2. Using the pitcher or bucket, pour water into the bowl until it is about ¼ full. 3. Place the mug in the center of the bowl. Be careful not to splash any water into it. 4. Cover the top of the bowl tightly with the plastic wrap.  5. Tie the string around the bowl to hold the plastic wrap in place.  6. Watch the bowl to see what happens.

What is happening?

The "mist" that forms on the plastic wrap will change into larger drops of water that will begin to drip. (You can speed up the dripping by carefully moving the bowl – don't splash! – into the shade.) When this happens, continue watching for a few minutes, then carefully peel back the plastic. Is the coffee mug still empty? Water from the "ocean" of water in the bowl evaporated. It  condensed to form misty "clouds" on the plastic wrap. When the clouds became saturated it "rained" into the mug!

Families turn on faucets about 70 times a day. (National Drinking Water Alliance, Blue Thumb Campaign).

Activity 20: You can be a "water detective"!

Investigate to find out how much water a leaky faucet wastes in one day. Find out if there are any leaky faucets in your house.

What you need:

a faucet a watch or clock a piece of paper a pencil or pen a one-cup measuring cup a bucket a pitcher or watering can

1. Turn on a sink or bathtub faucet just enough to make it drip. (If there is a faucet in your house that really leaks, use that one.)  2. Write down the time. 3. Place the bucket under the dripping faucet. 4. Leave it there for one hour, then turn off the faucet. (Or move the bucket away from the leaky faucet.) 5. Fill the measuring cup by pouring from the bucket or dipping the cup into the bucket.  6. Empty the cup into the pitcher or watering can. Write down the amount of water you measured. 7. Keep pouring and measuring until the bucket is empty. 8. Count the number of  cups of water. (If you lost count, repeat the pouring and measuring from the pitcher or watering can.) 9. Multiply the number of cups collected in one hour by 24 hours in a day. Look at the chart to see how many cups of water make one gallon, then divide this number into the number of cups you collected to find out how many gallons of water the dripping faucet would waste in a day. Use the water in the pitcher or watering can to water flower beds or houseplants. 10. Check all of the faucets in your house or apartment (don't forget outside faucets!) to see if any of them leak 

 IMPORTANT! Talk to the adults at your house about getting leaky faucets fixed. Usually a faucet that leaks just needs a new rubber washer.

How many cups in . . . ?

 2 cups  = 1 pint  4 cups  = 1 quart 16 cups = 1 gallon  4 quarts = 1 gallon

 

You could survive about a month without food, but you could only survive 5 or 6 days without water.

One gallon of gasoline spilled on the ground can pollute 750,000 gallons of water.

Activity 21: Super Water Saver Secret

You can save several gallons of water every day with one simple action. How? Turn off the faucet while you are brushing your teeth!

Find out how much water you can save!

What you need:

the sink where you brush your teeth a large bucket or other container that will fit under the faucet* a measuring cup your toothbrush & toothpaste

What you do: 

1. Put the empty bucket under the faucet.2. Brush your teeth like you always do. 3. Leave the water running while you brush. 4. Turn off the water when you finish brushing.5. Pour the water from the bucket into the measuring cup. (Or you can dip the cup in the bucket.) Write down 1 cup, then empty the measuring cup.6. Keep filling and emptying the measuring cup (write down how many times) until the bucket is empty.7. Look at the chart to find out how many cups are in a quart. Divide the number of cups of water you collected in the bucket by this number to find out how many quarts of water would have gone down the drain if you hadn't caught it in the bucket. How many quarts are in a gallon? Did you collect more than a gallon of water in the bucket while you brushed?

The next time you brush your teeth:1. Put the empty bucket under the faucet.2. Brush your teeth like you always do, except this time, turn off the faucet when you are not using the water to wet or rinse your toothbrush or to fill a cup to rinse your mouth.3. Measure the water in the bucket like you did before. 4. How much water would have gone down the drain if you hadn't caught it in the bucket?5. Subtract the amount of water collected when you turned off the faucet while brushing from the amount of water collected when you let the water run. This is how much water you save by turning off the water while you brush your teeth!6. Multiply this amount by the number of times you brush your teeth in a day to see how much water you can save, all by your self, every day, with the simple action of turning off the faucet! 7. How much water can you save in a week? How much would be saved if everyone who lives in your house turned off the water while they brushed their teeth?

*If you can't get a large enough bucket under the faucet, close the drain in the sink and collect the water. Dip the water out of the sink to measure the amount. You may miss a little bit at the bottom of the sink.

More easy ways for kids to save water:

1. Keep a container of drinking water in the refrigerator. Don't let the faucet run while you wait for cool water to drink.2. Don't use the toilet as a trash can. Throw tissues, bugs, and paper towels in the garbage instead of

flushing.3. Use a broom to clean the sidewalk and driveway instead of the hose.4. Use a washcloth to wash your face. Turn off the water while you scrub.5. Wash your hands by wetting them, then turning off the faucet while you soap up. Turn the water on again when you are ready to rinse.

http://www.mcwa.com/MyWater/KidsWaterFun.aspx

Appendix 1.1

Appendix 1.2 second method

Waterproof origami boat

Be aware that the heavier the paper you use, the harder the boat will be to make. Use a waxed paper from an art store to make your boat last longer, or color one side of the paper

completely with a crayon. You can also try to make your boat out of aluminum foil. Try to get the lines to line up. Make sure you crease well to make tight folds.

Fold a letter-sized (8.5" by 11") or A4 piece of paper in half, top to bottom. The fold should be "hamburger-style." Put the side you want to be exposed to the water on the inside of the first fold.

Make a vertical crease, and unfold. After you've folded the paper in half horizontally, fold it in half vertically. Unfold the vertical fold so that you're left with a crease showing you where the center of the paper is.

Fold down the top corners. Grab the two top corners, and fold down so that they line up with the center crease.

Fold the bottom of the paper up against both sides. Grab the top flap at the bottom of the paper, and fold it up against the bottom of the triangle. Fold the paper over, and do the same thing to the bottom flap on that side. (You can also stop here if you want a paper hat!)

Fold the bottom corners in. On one side of the paper, grab the corners of the rectangle that are sticking out over the triangle. Fold them in around the edge of the triangle. Flip the paper over, and do the same thing on the other side

Make the triangle into a square. Use your fingers to open up the bottom of the triangle. It should naturally start to pop into a square shape, so that what were once the bottom corners of the triangle fold over each other and become the bottom corner of a diamond

Fold up the bottom flaps. Arrange your paper so that the bottom points of the diamond can fold upward. Fold up one corner, aligning it with the top corner. Flip the paper over, and do the same thing to the other side.

Make the triangle into a square again. Like you did last time, open up the bottom of your new triangle with your fingers. The bottom corners will line up to become the bottom point of a square diamond.

Fold up the sides of the boat. Make little adjustments to your boat so that the sides come up a bit, keeping the water out of the middle and preventing the boat from sinking.

Power your boat with a balloon if your boat is made up of aluminium foil.

Now take a balloon, rub it with your hair, take the balloon close enough to the boat so that it is not touching the boat but it is about to touch. Now move the balloon. Your boat will follow the balloon.

What is happening?

When we rub a balloon with our hair, electrons from your hair move to the balloon. Therefore, now here is more number of electrons on the balloon as compared to the protons. So there is more positive charge which makes the balloon negatively charged. When this balloon comes closer to the boat due to induction electrons in the atoms of boat align themselves to make the boat positively charged. As we know positive and negative attract, balloon attracts the boats towards it. We also know that magnetic force is action at a distance force, so we do not need to touch in order to pull the boat with the help of the magnetic force.

Appendix 1.3

Brian you can add your steps to make a boat here……….. :)