States of Matter

What state of matter has a definite shape?

• Solid

• Liquid

• Gas

Why do liquids take the shape of their container?

• Because they have a definite shape

• Because their particles are tightly packed

• Because their particles can move past each other

• Because their particles are far away from each other.

If you put water in the freezer, what will happen to it?

• It will turn into a gas

• It will stay the same

• It will turn into a solid

• It will disappear

Which of the following best explains why a balloon inflates when you blow air into it?

• Air particles move closer together

• Air particles dissapear

• Air particles stay in one place

• Air particles push against the balloon walls

Which state of matter do you think is the most useful in everyday life? Explain your choice.

• Solid

• Liquid

• Gas

• all of the matter

Why is melting ice considered a physical change?

• Because it creates a new substance

• Because it changes the chemical composition of water

• Because it only changes the state of water from solid to liquid

• Because it involves a chemical reaction

If you tear a piece of paper into small pieces, what type of change is this?

• Chemical change

• Physical change

• Both physical and chemical change

• Neither physical nor chemical change

Which of the following best explains why rusting of iron is a chemical change?

• Because it changes the shape of the iron

• Because it changes the color of the iron

• Because it creates a new substance with different properties

• Because it can be easily undone

Which type of change do you think is more important to understand in everyday life, physical or chemical changes?

• Physical changes

• Chemical changes

• Both are equally important

• Neither is important

What does it mean if a material is flammable?

• It can catch fire easily

• It cannot catch fire

• It melts easily

• It is waterproof