Mia's Study Guide

What is a Physical Change?

• When something changes color forever

• When something changes shape or size, but stays the same thing

• When something new is made that wasn’t there before

• When something disappears

Which of these is a Chemical Change?

• Melting an ice cube

• Cutting paper

• Baking a cake

• Folding clothes

Freezing water into ice is a Physical Change.

• True

• False

What is an Irreversible Change?

• A change you can undo

• A change that makes something brand new and can’t go back

• A change that happens quickly

• A change that only happens in nature

Which of these is a Reversible Change?

• Breaking a toy

• Rusting metal

• Burning a piece of wood

• Boiling water

Chemical changes usually make something new that we can’t change back.

• True

• False

Which example shows a Physical Change?

• Mixing baking soda and vinegar

• Cooking an egg

• Freezing juice to make popsicles

• Burning a candle

What happens when you burn a piece of paper?

• • It changes shape but can still be paper

• It changes color and becomes something new, like ash

• It only gets warm

• Nothing changes

Melting chocolate and letting it harden again is a Reversible Change.

• True

• False

When you make a smoothie, is it a Physical or Chemical Change?

• Physical Change

• Chemical Change