Unit 4: Matter

What method of separation does this show?

Decantation

What method of separation does this show?

Distillation

What method of separation does this show?

Evaporation

What method of separation does this show?

Filtration

What method of separation does this show?

Magnetic Separation

Pure substance or mixture?

What type of mixture?

What happens in a chemical change?•In a chemical change, a new substance is formed

Chemical change or physical change?

Fermentation

•Bacteria produce:

lactic acid

• Fungi produce: alcohol

Does fermentation need oxygen? No

Fungi or bacteria change organic substances into other substances.

Combustion•Does it require oxygen? Yes

• It produces energy in the form of…

Heat and light

• It happens when oxygen reacts with:

A fuel

Oxidation•Does it require oxygen? Yes

• Some metals react when they are exposed to air. This forms:

Rust