Tides: Understanding Ocean Rhythms

Tides: Understanding Ocean Rhythms

Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.

1. Which celestial body is the primary cause of tides on Earth?

2. What is the approximate time difference between a high tide and the next low tide?

3. The gravitational pull of the Moon creates a bulge of water on the side of Earth facing the Moon and also on the   side.

4. When the Sun, Moon, and Earth are aligned, either during a new moon or full moon, we experience exceptionally high and low tides known as   tides.

5. Explain the difference between a spring tide and a neap tide. Include the relative positions of the Earth, Moon, and Sun in your explanation.

6. Describe how the rotation of the Earth contributes to the occurrence of two high tides and two low tides approximately every 24 hours.

7. Tidal ranges are generally larger in open oceans compared to confined bays and estuaries.

8. The Moon's orbit around Earth is perfectly circular, leading to consistent tidal forces throughout the month.

Observe the image below showing an ocean beach at low tide.

9. Based on your understanding of tidal cycles, what would this same location look like approximately six hours after the photograph was taken? Explain why.