Solids
Name an example of a gas.
Anything that is a gas.
What causes matter to change from one state to another?
Matter changes states when heat is either added to it or taken away from it.
Describe the speed of molecules in a gas.
The molecules in a gas move very quickly and are spread very far apart.
What is it called when a solid changes to a liquid?
It is called melting.
Describe the pattern of the molecules in a solid.
They are tightly packed together with hardly any space.
Describe the shape of a liquid.
A liquid does not have its own shape and it will take the shape of the container that it is in.
What is the color of most gases?
Most gases are translucent or see-through (clear).
Freezing water
What is a physical change?.
What is it called when a liquid changes to a solid?
It is called freezing.
Describe the shape of a solid.
A solid will always keep its own shape.
Describe what happens when heat is added to a liquid.
A liquid will evaporate and become a gas when it is heated.
Describe the shape of a gas.
Gases spread out throughout the shape of the room or environment that they are in.
Baking a cake in the oven
What is a chemical change?
What is it called when a liquid changes to a gas?
It is called evaporation.
Describe what happens when heat is added to a solid.
When heat is added to a solid, it melts and turns into a liquid.
Describe what happens when heat is taken away from a liquid.
The liquid will turn into a solid.
Describe what happens when heat is taken away from a gas.
When heat is taken away from a gas, it goes through condensation and becomes a liquid.
1. Water evaporating
2. Letting a banana rot
3. Butter Melting
4. Nail rusting
2. What is a chemical change?
3. What is a physical change?
4. What is a chemical change?
What is it called when a gas changes into a liquid?
It is called condensation.