Tides

Tides are caused by

• Strong winds over ocean waters

• Shifting of plates on the ocean floor

• Amount of salt in ocean

• Gravitational pull between earth and moon

A high tide occurred at 6 am, the next tide occurred at...

• 6:25pm

• 8am

• 12:25 pm

• 6 pm

High tides occur every...

• 12 hours

• 12 hours and 25 minutes

• 6 hours

• 6 hours and 25 minutes

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

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

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

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

• Sun
• Saturn
• Moon 
• Venus

Wha type of tide would this arrangement of earth-moon-sun create?

• full moon tide

• new moon tide

• neap tide

• spring tide

What type of tides would this arrangement of earth-moon-sun create?

• neap tide
• spring tide
• new moon tide
• full moon tide

How many low tides and high tides happen in a day?

• 1 low tide, 1 high tide
• 4 low tides, 4 high tides
• 3 low tides, 3 high tides
• 2 low tides, 2 high tides

What do we call the small tides that happen when the sun and moon are at right angles to each other?

• Neap Tide
• Spring Tide
• Larger Change
• Smaller Change