Across
- 3. Evaporation from plants
- 5. Day and night the same length
- 6. One equinox towards the end of this month
- 9. The shape of the Earth's orbit (not a circle)
- 10. The different ways water falls to the ground
- 12. Water gathered by creeks, streams, rivers etc.
- 15. The movement of the oceans caused by the moon's pull
- 16. A really 'big' high tides
Down
- 1. Water vapour turning back to liquid
- 2. Water flowing off hard surfaces
- 4. Model of solar system where Earth is at the centre
- 7. Model of solar system with sun at the centre
- 8. The second equinox towards the end of this month
- 9. Water turned to vapour by the sun's heat
- 11. The angle the Earth is on (23.5 degrees)
- 13. Number of high and low tides a day
- 14. Really 'small' high tides