Across
- 3. The thin and rocky outer layer of the Earth.
- 7. The unit for weight.
- 9. When our hemisphere tilts away from the sun, we are in...
- 10. Day and night is caused by the Earth...
- 11. These rocks are formed by heat and pressure.
- 13. The unit for mass.
- 15. Contains billions of stars.
Down
- 1. Gravity pulls us towards the centre of the ...
- 2. When we burn fossil fuels we release .... dioxide.
- 3. This astronomer came up with a heliocentric model of the universe.
- 4. Molten rock.
- 5. The value of gravity on Earth.
- 6. This type of rock is formed when sediment is compacted.
- 8. A large burning ball of gas.
- 12. Slow cooling magma forms these size crystals.
- 14. The layer of the Earth that can flow slowly.
- 16. Carbon dioxide dissolves in rainwater, making it....