Ocean Waves and Tides

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

• Sun

• Saturn

• Moon

• Venus

Tides are caused by

• strong winds that blow over ocean waters.
• the interaction of Earth, the moon and the sun.
• the shifting of the plates on the ocean floor.
• variations in the salinity of ocean water

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

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

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 

Tags

NGSS.MS-ESS1-1

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

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

Tags

NGSS.MS-ESS2-4

What is the primary cause of ocean waves?

• upwellings
• wind
• density differences in ocean water
• temperature differences in ocean water

Which of the following statements is true about ocean water temperature and depth?

• As depth increases, temperature increases.
• As depth increases, temperature decreases.
• As depth increases, temperature decreases, then increases.
•   Temperature and depth are not related in ocean water.

As you travel deeper in the ocean...

• Temperature increases
• Light increases
• Pressure decreases
• Temperature decreases

Why do waves only move on the surface?

• Wind cannot reach low depths
• Too much pressure
• Not enough sunlight
• The temperature is too low

What term is the measure of dissolved salts in water?

• Thermocline
• Salinity
• Saltiness
• Tides