physical and chemical properties vs lesson objectives i can distinguish between physical and...

Physical and Chemical Properties

VS

Lesson Objectives

•I can distinguish between physical and chemical properties of matter.

Lesson Outline• To view a Power Point presentation

• Complete students notes and learn a song.

• Do 2 group activities that will practice the skill objective.

• Play class physical and chemical BINGO

• Choose 1 from 4 independent activities and complete for a grade.

Physical and Chemical Change Song Sung by Michael Offutt

Produced by Evelyn TurciosChange, it’s everywhere you go

Change, it may be fast or slow

Change, you can’t deny it but at least you can learn to classify it

Put a can of cola in the freezer, the water in the cola turns to ice, it pushes on the can and explodes. Clean it up

that mess is not so nice.

Now ice seems different than water but its true identity is the same, What do you say when you see this kind of

thing, you call it a physical change.

Change, it’s everywhere you go

Change, it may be fast or slow

Change, you can’t deny it but at least you can learn to classify it

Light a match and start a candle burning, see how it gives off heat and light. Don’t stick your finger in that hot

wax, people who do that aren’t too bright.

The wax is doing more than melting, it’s atoms move around and rearrange, Co2 and water are produced when it

burns, you call that chemical change.

Change, it’s everywhere you go

Change, it may be fast or slow

Change, you can’t deny it but at least you can learn to classify it

So what kind of change is iron rusting or when a leaf turns from green to red,

What’s going on when you grind a rock to dust or when you grow an hair on your head

What kind of change is paper burning or when you hammer metal into foil, what happens when you put Alka

Seltzer tablet on your tongue or when you make a pot of water boil

Change, it’s everywhere you go

Change, it may be fast or slow

Change, you can’t deny it but at least you can learn to classify it

What are physical changes?

• Physical changes are changes in the way matter looks.

• A physical change can also take place when matter changes from one state to another state.

• Changes in size and shape are physical changes.

• Can you think of ways that you can physically change a sheet of paper?

Here are some ways you can physically change a sheet of

paper:

• Cutting• Tearing• Shredding• Folding• Painting• Writing on• Gluing

• Density

• Electrical conductivity

• Solubility

• Adsorption to a surface

• Hardness

• Melting point

• Boiling point

•Vapor pressure•Color•Texture•State of matter•Create no new substance

What are chemical changes?

• Chemical changes are the opposite of physical changes.

• Chemical changes take place when matter changes to a different kind of matter.

• Can you think of one item on the table that could be changed chemically?

Here are some examples of chemical changes:

Alka SeltzerBubbles in

water

An Iodine test will turn food black, if it

contains starch

Signs of Chemical Properties

gas bubbles color change - leaves turning colors in the

fall, rust appearingdisappearance of color – fading fabricheat or light A new substance is madeCan not be reversed

Quick Review

• What is a physical change? A physical change is a change in the size, shape, state, or appearance of matter.

• What is a chemical change? A chemical change causes matter to become a new kind of matter.

You are now ready to play“Name That Change!”

How To PlayFor each item, you will need to tell whether a physical or a chemical

change has taken place!

physical

chemical

physical

physical

chemical

physical

Congratulations!

You have successfully played “Name That

Change!”