Ocean Tides and Moon Phases

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

What do we call a tide that has largest range; highest high and lowest low?

• gravity
• wind
• spring
• neap

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

In general, tides occur...

• each hour
• 2 times a day
• each month
• twice a month

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

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

Tides are caused mostly by ___________

• wind
• gravitational pull of moon
• waves gravitation toward land
• rain

Which phase of the moon is represented in this diagram?

• new moon
• first quarter
• full moon
• last quarter/third quarter

What stage is this moon in?

• First quarter
• Half Moon
• Waning Gibbous
• Waxing Gibbous

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

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

True or False: We can see the dark side of the moon.

• True
• False