PHYSICAL SCIENCE

• chemical reaction - result in the formation of new substances usually irreversible.
• physical reaction - no formation of a new substance occurs often reversible.
• reactivity - The ability of matter to combine chemically with other substances exampe : Iron + Oxygen = Rust
• oxidation - The ability of matter to react with oxygen.
• ph level - Measure of how acidic or basic a substance is
• flammability - The ability of matter to burn.
• taste - The property of substance describe how it tastes.
• odor - The property of substance describe how it smells.
• color - The property of substance that is detected by the eyes.
• texture - The property of substance how the surface behave.
• hardness - The ability of matter to be rigid.
• boiling point - The temperature which causes the liquid to boil.
• melting point - The temperature which causes the solid to melt.
• Density - The mass of the substance.