Physical Changes
Give an example of a physical change.
This type of change does not create a new substance. Example, cutting paper.
What is a chemical change?
A type of change that creates a new substance with different properties.
What is melting?
This process turns a solid into a liquid when heat is added. For example, ice turning into water.
What is combustion?
This is the scientific term for burning, a process that produces heat and light.
What is evaporation?
When a liquid turns into a gas at any temperature below its boiling point. For example, when water changes into steam.
What is rust?
When metal reacts with oxygen and moisture, it forms this reddish-brown substance.
Name two ways to tell if a change is physical.
1. a change in size or shape
2. a change in state (solid, liquid, gas)
Name two ways to tell if a change is chemical.
1. a color change
2. the production of gas
Name all six phase changes of matter.
1. melting
2. freezing
3. evaporation
4. condensation
5. sublimation
6. deposition
A chemical change is different from a physical change because it creates this.
A new substance.