6th grade Natural Science

1. Unit 4: Matter

2. What method of separation does this show?
Decantation

3. What method of separation does this show?
Distillation

4. What method of separation does this show?
Evaporation

5. What method of separation does this show?
Filtration

6. What method of separation does this show?
Magnetic Separation

7. Pure substance or mixture?

8. What type of mixture?

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

10. Chemical change or physical change?

11. Fermentation
•Bacteria produce: lactic acid
• Fungi produce: alcohol
Does fermentation need oxygen? No
Fungi or bacteria change organic substances into
other substances.

12. Combustion
• Does it require oxygen? Yes
• It produces energy in the
form of…
Heat and light
• It happens when oxygen
reacts with:
A fuel

13. Oxidation
•Does it require oxygen? Yes
• Some metals react when they are
exposed to air. This forms:
Rust