1. Cornell Notes page 57 “How does the moon affect the earth?”
The Tides
Cornell Notes page 57
“How does the moon affect the earth?”

2. What is Gravity?
Natural phenomenon by which all physical bodies (anything with mass) attract each other
holds celestial bodies together
keeps celestial bodies in orbit

4. What effect does the moon have on Earth?
Tides-
rise and fall of water levels due to gravitational forces
Occur twice a day (2 high tides, 2 low tides)

5. high tide
low tide

8. How are Tides created? (3 ways)
1. Because the Earth and the moon are attracted to each other

9. Moon and earth are attracted to each other by gravity

11. Tides are also created by:
2. the rotation of the earth
3. and the sun’s gravity

12. The sun can affect the tides, too
Spring Tides

13. Tides are not waves!

14. What are Spring tides?
Tides that produce the greatest difference between high and low tides—The highest high tide and lowest low tide
Occur twice a month

15. When do spring tides occur?
Once at the full moon and once at the new moon
When the sun moon and earth are nearly in a line
Spring Tides combined with big storms

16. Spring Tides –the sun and the moon line up

17. What are NEAP Tides?
Tides that produce the least difference between high and low tides—the lowest high tides and highest low tides
Occur twice a month

18. When do neap tides occur?
Once at the first quarter and once at the third quarter
When the sun moon and earth are at right angles to each other

20. The neap tides –the smallest tides –when the sun and moon are at a 90 angle

21. What other effects do we have from the moon??