Chemical and Physical Changes of matter

Matter is...

• Anything that takes up space and has mass

• the large clumps of dirt on earth

• what you ask someone when they don't feel well

• only one thing

A property is...

• the amount of land you own.

• something about matter that can be observed with one or more of your senses and tells you what the matter is like.

• something you own like a pencil or book.

• Something about mass that cannot be observed with one or more of your senses.

Tags

NGSS.MS-PS1-2

What is a physical change?

• a change that occurs when you add yeast to water

• a change that occurs that does not change the object into something else.

• a change that occurs when you add bleach to the substance

• a change that occurs when something rusts.

What is a chemical change?

• paper being torn in half

• water mixed with food coloring

• A reaction that keeps the substance the same.

• A reaction that produces a completely different substance.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is an example of a chemical change?

• Melting a popsicle

• making pancakes

• Ice melting

• water with food coloring to change the color

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Ripping up paper ...

• Chemical Change
• Physical Change

Which is an example of a chemical reaction?

• paper cut into small pieces
• chocolate melting in a pan
• flour and sugar mixed in a bowl
• cookies baking in an oven

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Can you reverse a chemical change?

• Yes

• No

Tags

NGSS.MS-PS1-2

Look at the picture. Which is NOT an example of a physical change that is taking place?

• The wick of the candle is giving off light as it burns.

• The wax is running down the side of the candle.

• The wax is changing from a solid to a liquid.

• The candle is getting shorter.

Choose the best description below for the image

• physical change

• chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5