Tides
1. How many high tides are there every day?
2. What is a spring tide? How often do they occur?
3. What is a neap tide? How often do they occur?
4. Draw a sketch showing the positions of the Earth, Moon and Sun during spring and neap tides.
5. Find a website which tells people when the next high tide will occur near where they live?
6. When will it occur?