Changes in Matter

How do you know something is decaying?

• It will bublbe

• It will harden

• It will expand (get bigger)

• It will change color

What will happen to fruit when it is exposed to air for a long period of time?

• It will go through physical changes because it will melt.

• It will go through chemical changes because it will slowly start to crumble.

• It will go through chemical changes because it will harden.

• It will go through chemical changes because a new substance will start to grow on it.

Tags

NGSS.MS-PS1-2

A chemical change is

• when matter losses energy

• when there is a change of state

• when new matter is formed

• when there is a solution

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is not an example of chemical change?

• rusitng nails

• glass breaking

• burning leaves

• digesting food

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Amir snaps a twig in half, then he pulls the leaves off of it, and finally he sets it on fire. Select the correct changes in the order in which they happen

• Chemical, Chemical, Physical

• Chemical, Physical, Chemical

• Physical, Physical, Chemical

• Physical, Chemical, Chemical,

Tags

NGSS.MS-PS1-2

Which of the following is an example of a physical change?

• Bending a wire

• Cooking pasta

• A rusting bike

• An apple decaying