Bellringer On your bellringer next to the questions

Bellringer On your bellringer next to the questions you answered incorrectly, explain why you chose what you chose and explain why the correct answer make the most reasonable choice.

TIDES!

Essential Questions • Why does the moon have a greater effect on tides than the Sun? • Where are the relative locations of the Sun, Moon, and Earth during a spring and neap tide? • How can the cause of tides be better understood through the use of models and visual aids? • What are some examples of how the Earth’s tides interact with other spheres?

Think about it • What makes waves on the ocean? (Wind) • What are tides? (The tide is the cyclic rising and falling of Earth's ocean surface. ) • What makes tides go up and down? (The moon and sun) • Does the moon have gravity? (Yes) • Does the sun have gravity? (Yes) • What effect does the moon's gravity have on the ocean? (It causes a tidal bulge on the side of the Earth closest to the moon)

Modeling Tides with Rubber Bands • Place a rubber band on the desk in a circular shape. • It represents the oceans. • Now place one finger in the middle of the rubber band. • The finger represents the Earth and ocean's center of gravity. Call the finger "e". • Now place a finger from your other hand along the inside edge of the rubber band. • This finger represents the force the moon exerts on the Earth's oceans. Call this finger "m. " Following a straight line, slowly pull m away from e. • At this point, the rubber band stretches.

Modeling Moon Phases and Tides as a class High tides are the areas where the students are leaning out away from the center of the circle. Low tides are at the sides of the circle, halfway between the high tides.

Bay of Fundy

DATE Aug 1 Aug 2 Low 4. 6 m. 0. 7 m. High 42 m. 43 m. DATE Aug 16 Aug 17 Low 7. 9 m. 6. 2 m. High 37. 1 m. 39 m. Aug 3 Aug 4 Aug 5 0. 3 m. 0. 7 m. 1. 6 m. 43. 3 m. 42. 3 m. Aug 18 Aug 19 Aug 20 3. 3 m. 2. 6 m. 42. 7 m. 43. 6 m. Aug 6 Aug 7 Aug 8 Aug 9 3. 3 m. 5. 2 m. 7. 5 m. 9. 5 m. 41 m. 39. 4 m. 37. 4 m. 35. 8 m. Aug 21 Aug 22 Aug 23 Aug 24 2. 3 m. 2. 6 m. 3. 3 m. 4. 6 m. 44 m. 43. 6 m. 43 m. 41 m. Aug 10 Aug 11 Aug 12 11. 5 m. 12. 5 m. 13. 1 m. 34. 4 m. 32. 5 m. 33. 5 m. Aug 25 Aug 26 Aug 27 5. 6 m. 4. 9 m. 5. 9 m. 39. 7 m. 40. 4 m. 39 m. Aug 13 Aug 14 Aug 15 11. 8 m. 9. 5 m. 32. 2 m. 35. 1 m. Aug 28 Aug 29 Aug 30 4. 6 m. 3. 6 m. 2. 3 m. 39. 7 m. 40. 7 m. 41. 7 m. Aug 31 1. 6 m. 42. 7 m.