Solids
Liquids
Gases
Changes in State
Mystery Properties
100

What is the main characteristic of a solid? 

It has a definite shape and volume

100

Do liquids have a definite shape? 

No, they take the shape of their container

100

What is the main characteristic of a gas?

It has no definite shape or volume and expands to fill its container

100

What is it called when a solid turns into a liquid?

Melting

100

Which state of matter has the most tightly packed particles?

Solids 

200

How are the particles in a solid arranged?

They are tightly packed and only vibrate in place

200

How do liquid particles move? 

They slide past each other but stay close together 

200

How do gas particles move?

They move fast and spread apart

200

What is it called when a liquid turns into a gas?

Evaporation 

200

Which state of matter is made of particles that are far apart and move quickly?

Gases

300

What is an example of a solid that can change shape but is still a solid?

Clay, play dough, or rubber

300

What happens to liquid when it is poured from one container to another? 

It changes shape but keeps the same volume

300

What happens when gas is compressed into a smaller space, like a balloon?

It increases the pressure

300

What happens when a gas cools down and turns into a liquid?

Condensation

300

Which state of matter takes the shape of its container but does not expand to fill it?

Liquids 

400

What happens to most solids when they are heated? 

They expand or melt

400

Why do some liquids, like honey, pour more slowly than water?

Because of high viscosity

400

What is an example of an invisible gas that we need to live?

Oxygen

400

What is the process of a liquid becoming a solid?

Freezing

400

What happens to most substances when they get colder?

They contract and their particles move slower

500

Some solids can return to their original shape after being bent or stretched. What is this property called?

Elasticity

500

What happens to most liquids when they are heated?

They expand and may evaporate into gas

500

What happens to gas particles when they are heated? 

They move faster and spread out

500

What happens to the particles of a substance when it melts?

They move faster and spread apart as the solid turns into a liquid

500

What property allows some liquids, like water, to stick to surfaces like glass?

Adhesion