Seasons and Tides: Earth and Moon

Front

What causes the seasons on Earth?

Back

The tilt of Earth's axis as it revolves around the sun.

Front

When is it winter in the Northern Hemisphere?

Back

When the Northern Hemisphere is tilted away from the sun.

Front

What are spring tides?

Back

The highest tides that occur during full and new moons.

Front

What is the primary cause of tides on Earth?

Back

The moon's gravity.

Front

If it is spring in North America, what season is it in South America?

Back

Fall.

Front

What is the tilt of Earth's axis?

Back

The angle at which Earth is tilted from vertical, approximately 23.5 degrees.

Front

How does Earth's rotation affect tides?

Back

Earth's rotation causes the position of high and low tides to change throughout the day.

Front

What is a lunar month?

Back

The time it takes for the moon to complete one full cycle of phases, about 29.5 days.

Front

What is the difference between spring tides and neap tides?

Back

Spring tides are higher and occur during full and new moons; neap tides are lower and occur during first and third quarter moons.

Front

How do the sun and moon affect tides?

Back

The gravitational pull of the moon has a stronger effect on tides than the sun, but both contribute.