Moon, Tides, & Seasons Review

Front

What is the average time it takes for the moon to complete one revolution around Earth?

Back

Approximately 29 days.

Front

Why does the moon's gravitational pull have a greater effect on tides than the sun's?

Back

Because the moon is closer to the Earth than the sun.

Front

What are tides?

Back

The rise and fall of the water level on the shore.

Front

What is the waning gibbous phase?

Back

A moon phase where more than half of the moon is illuminated but decreasing.

Front

How many high and low tides occur in a 24-hour period?

Back

2 low tides and 2 high tides.

Front

What causes tides?

Back

The gravitational pull of the moon and the sun on Earth's oceans.

Front

What is the difference between spring tides and neap tides?

Back

Spring tides occur during full and new moons, resulting in higher high tides and lower low tides; neap tides occur during the first and third quarters of the moon, resulting in lower high tides and higher low tides.

Front

What is the role of the sun in the tidal system?

Back

The sun also exerts gravitational pull on Earth’s oceans, but its effect is less than that of the moon due to its greater distance.

Front

What is a lunar month?

Back

The time it takes for the moon to go through all its phases, approximately 29.5 days.

Front

What is the new moon phase?

Back

A moon phase where the moon is not visible from Earth because it is between the Earth and the sun.