Physical & Chemical Changes
By Emily Viss
Any characteristic of a material that can be observed or measured without changing the identity of the material.
- Color and Shape
- Length and Mass
- Volume and Density (D+M/V)
The physical property of a substances change, but the identity of the subtances does not change.
- Changing from one state of matter , to the next ( Ice melts to liquid-liquid boils to steam)
- Melting 0 degrees C, and boiling point 100 degrees C, and boiling point
- Slicing bread, melting, mowing lawn
Any characteristics that give's a substance the ability to undergo a change that result in a new substance.
- Flammability (ability to burn)
- Reacts with oxygen (ability to burn)
- Reacts with light (pictures being developed)
- Reacts with water (medicine dissolving in water)
A change in the identity of a substance due to the chemical properties of that substance, (You have a new substance) (is it reversible?)
- 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 electricity)