Physical & Chemical Changes
By Kailey Shafer
Physical Properties
Any characteristic of a material that can be observed or measured without changing the identity of the material.
Examples:
- Color and Shape
- Lenght and Mass
- Volume and Density (CD=M/V)
Physical Changes
The Physical Property of a substance change, but the identity of the substance does not change.
Examples:
- Changing from one state of matter to the next.
- (Ice melts to liquid-liquid boils to steam)
- Melting o degrees c, and boiling point 100 degrees c
- slicing bread, melting ice, mowing lawn
Chemical Properties
Any characteristic that gives a substance the ability to undergo a change that results in a new substance.
Examples:
- Flammability (Ability to burn)
- Reacts with oxygen (Ability to rust)
- Reacts with light (Pictures being developed)
- Reacts with water (Medicine dissolving water)
Chemical Change
A change in the identity of a substance due to the chemical properties of that substance.
(you have a new substance) (is it reversible) NOT
Examples:
(you have a new substance) (is it reversible) NOT
Examples:
- flammability (fire burning to ash)
- reacts with oxygen (fruit rotting)
- Heat and light (vitamins can change exposed to light)
- Electricity (water can be broken down with electrisity)