SCIENCE EXPERIMENT

 

Nasim Khan Tanvir Quader

Delphine YemoweYogeswary Premkumar

Anna Owusu Afriyie 

WHY WE CHOOSE THE ACTIVITIES

School age children (8-10 years) are frequently studying the properties of objects and its properties.

They seem to like science of physical and chemical reactions of objects, interactions and magnetism these is like magic.

“Children are scientists who are naturally curious and biologically printed to learn about the world around them (French, 2004). They use the information they gain through their everyday experiences to develop theories about how the world works” (Bullard, p.164).

CONTINUE ------

Piaget argued that “Children act like scientists in creating theories about the physical and social worlds they are trying to understand”(Kail & Zolner, 2009, p11).

We also believe that children are naturally curious, and they seem have interest in science activity. For these reason we have selected the activities “Science experiment”, for the 8-10 years old children. We wish they will enjoy the activities.

WHAT THE ACTIVITIES ARE -----

‘Science activities’ is a experimental fun activity.

Children will exploring the fun scientific ‘interaction’ that children can perform using basic materials found in the kitchen.

Children could discover with this science experiment. It is also a great learning game for curious, and knowledge seeking children.

VOLCANO ACTIVITY

MATERIALS WHICH NEED

6 cups of flour 2 cups of salt 4 tablespoons of cooking oil 2 tablespoons of baking

soda Dishwashing detergent Red food color Vinegar Warm water Large bowl Tissue paper Plate or Trey

PROCEDURE- I

Mix 6 cups of flour, 2 cups of salt, 4 tablespoons of cooking oil and 2 cups of water in a large bowl.

Mix the ingredients together with hands until the mixture is firm.

Stand the bottle in the centre of the pan. Mould the salt dough around the bottle in

a cone shape (like a volcano) but leave the bottle top uncovered.

Fill the bottle most of the way full with warm water and a bit of red food color.

PROCEDURE- II

Now add 6 drops of detergent to the bottle contents

Add 2 tablespoons of baking soda to the contents

Slowly pour vinegar into the bottle carefully. Now………. Wow!!!! ……….watch the

eruption! The volcano will fizz and spurt red lava. You like more eruptions? Recharge the volcano by adding more baking

soda and vinegar You can have as many eruptions as you like.

EXPLANATION:WHY DOES THIS HAPPEN?

Chemical reaction between the baking soda and vinegar makes the red lava.

Carbon dioxide gas is produced as a result of the chemical reaction.

CO2 builds up pressure inside the plastic bottle.

The gas bubbles out of the volcano. This is a good representation of what

happens in real volcanoes.

DEVELOPMENTAL DOMAINS SUPPORTED :

This activity will provide opportunity for the School age children to learn-

Cognitive: Children will increase the critical thinking area while exploring the volcano activity, because they will develop skills how volcano eruptions occurs in the world

Language: Skills will be developed by asking and answering different types of questions, and

talking together. Social: Social skills will be developed

through work together, share their ideas, and taking turns.

WATCH THE VIDEO CLIP

Video Clip of the activity:

http://video.about.com/chemistry/Erupting-Volcano.htm

MAGIC MILK ACTIVITY

MATERIALS WHICH NEED

A clean plate Milk (2% / whole / whatever) Food colour- as many

cool colours as children like…. Some dish detergent A cotton swab

PROCEDURE - I

At first children will clean the plate and make it dry They will pour milk into the plate, so that milk covers the entire

plate They will place a few drops of food colour around the milk in

different spots.

This is the chance to create real art…….

They will dip the cotton swab in dish detergent

Now Ready……. Set…….… Go!

PROCEDURE -II

The child will Touch the milk with the dish detergent swab

Then place it at the centre of the plate

Now let see what happens when put it in one side!

No need to stir or move the swab at all

just sit back and watch the magic…………….

DEVELOPMENTAL DOMAINS SUPPORTED …..

This activity will provide opportunity for the School age children to learn-

Cognitive: Children will learn how to explore some simple activities on their own and discover how some chemicals react with others.

Language: Skills will be developed by asking open ended questions, and answering different types of questions.

Social: Social skills will be developed through working together, sharing their ideas, and taking turns.

EXPLANATION:WHY DOES THIS HAPPEN?. When the milk is touched with

dishwashing detergents the surfactants get the energy from chemical reaction to lower surface tension causing the food color to be able to move. The enzymes reacts with protein, fat and calcium from milk and the food color spreads more due to the energy it get from the reaction causing all around it.

WATCH THE VIDEO CLIP.

Video Clip of the activity:

http://www.youtube.com/watch?v=0nwRCipcU6Q

BOUNCY EGGS

MATERIALS NEEDED

3 Eggs 3-cup plastic

container with screw-on lid

3 cup vinegar

PROCEDURE

Let children place the raw eggs in the plastic container. Then let them pour white vinegar into the container so that the eggs sinks completely in the vinegar. Screw on the lid loosely. Keep the egg put in the vinegar for two or three days.

Allow the children to observe the egg each day and record their observations .

Let them use a plastic spoon to remove the eggs from the vinegar on the fourth day. Let them record their observation of the egg and compare with their previous data.

Let children explore the eggs by throwing them from various heights. Let them start at two inches and drop one inch higher each time. Let them check the eggs after each drop for evidence that it has not broken during the drop. Allow the children to record their data after each drop.

EXPLANATION:WHY DOES THIS HAPPEN?.

Egg shell is made of calcium carbonate. Vinegar is acetic acid. Calcium carbonate reacts when exposed to an acid. The calcium carbonate egg shell dissolves, but the membrane inside the shell, surrounding the egg, remains intact. This makes the egg feel rubbery.

DEVELOPMENTAL DOMAINS: This activity will provide opportunity for

the School age children to learn- Cognitive: Children will learn how acetic

acid react with calcium carbonate, and will also learn how to explore this thing using some homemade materials.

Language: Skills will be developed by asking open ended questions and answering their different types of questions.

Social: Social skills will be developed through work together, sharing their ideas, and taking turns.

WATCH THE VIDEO CLIP.

Video Clip of the activity:

https://www.youtube.com/watch?v=mdXLEt3MtrY

BIBLIOGRAPHY-1

 Bullard, J. (2010). Creating Environments for Learning: Birth to Age Eight. New Jersey (Ohio): Pearson, pp 10,11,14

Kail, R.V., and Zolner, T. (2009). Children: A Chronological Approach. 2nd Canadian Ed. Toronto (ON): Pearson, pp10,11

http://www.weatherwizkids.com/experiments-volcano-baking-soda.htm

http://video.about.com/chemistry/Erupting-Volcano.htm

BIBLIOGRAPHY-2

http://www.ehow.com/how_2078900_make-egg-bounce.html

http://www.youtube.com/watch?v=0nwRCipcU6Q

http://chemistry.learnhub.com/lesson/3809-chemistry-experiment-magic-milk

https://www.youtube.com/watch?v=mdXLEt3MtrY

THANK YOU