KS3 Science Revision

1. How much of the Earth's atmosphere is Oxygen?

2. What 4 processes are involved with making sedimentary rock?

3. Name two types of Metamorphic Rock

4. What releases carbon dioxide into the atmosphere?

5. I am hard, contain cystals but no fossils. What rock type am I?

6. How are metamorphic rocks formed?

7. What is the name of the gases insulating heat in the atmosphere?

8. What is happening due to the rise in carbon dioxide?

9. What type of weathering is a plant growing in the crack of a rock?