1. REMINDER: TEST TOMORROW
AIM: How are tides created?
DO NOW:
Complete review sheet
REMINDER: TEST TOMORROW

3. Daily change in sea level on Earth’s surface
Tide
Daily change in sea level on Earth’s surface

5. Low tide = low water level
High tide = high water level

6. Pull of moon’s gravity Pulls water in ocean towards moon
Cause of Tides
Pull of moon’s gravity
Pulls water in ocean
towards moon

9. occurs on sides of earth facing toward & away from moon
High tide
occurs on sides of earth facing toward & away from moon

11. Occurs between high tides
Low tide
Occurs between high tides
Low tide
High tide
High tide
Low tide

12. Tides change every 6 hrs 15 min
2 high tides & 2 low tides per day

16. Moon is closer to the Earth
Eventhough the Moon
is smaller, it has
more gravitational pull
than the sun because......
Moon is closer to the Earth

17. Types of Tides
Spring Tide
Created when the Earth, Moon and Sun are in a straight line causing the Tides to be higher & lower than normal

18. Gravitational “Pulls” combine

19. Occurs during Full & new moon phases

20. 2. Neap Tide
Created when the Earth, Moon and Sun are at a right angles causing the Tides not as high & low as normal tides

21. Opposing pulls

22. Occurs during the 1st & last quarter phases

25. Every object in the universe attracts every other object
Law Of
Gravity