#21 Tides

Differences in the moon's and sun's pull on different sides of the Earth cause _________.

• gravity
• lunar phases
• tides
• dabbing

The bulge of water on the side of the Earth closest to the moon produces ___________.

• high tide
• low tide
• neap tide
• spring tide

Water flows toward the high tides, halfway between them causing ____________.

• neap tide
• high tide
• spring tide
• low tides

Tides are the cycle of rising and falling ocean water that repeats automatically every

• 24 hours
• 12.5 hours
• 25 hours
• 6.25 hours

Tides are caused mainly by the differences in how much gravity from the moon and the sun pulls on different parts of the Earth. 

• True
• False

Changes in the positions of Earth, the moon, and the sun affect the height of high tides during a month. 

• True
• False

What is a high tide?

• Sea pulled TOWARD the moon where Earth is CLOSEST to the moon

• Sea pulled AWAY from the moon where Earth is FARTHEST to the moon

• Sea pulled AWAY from the moon where Earth is CLOSEST to the moon

Which body has the greater effect on Earth's tides?

• Sun
• Saturn
• Moon 
• Venus

If tides alternate from high to low and there are two of each type of tide a day, about how many hours will generally be between each different tide?

• 2 hours
• 6 hours
• 12 hours
• 24 hours

You visited the beach at 12 pm (noon) and it is high tide. If you return 6 hours later what tide will you see? 

• high 
• low 
• none
• spring