Earth in Space Flashcard

Front

What causes seasons on Earth?

Back

The tilt of the Earth on its axis as it orbits around the sun causes seasons.

Front

What are the two days of the year with nearly equal hours of daylight and darkness?

Back

Spring and autumnal equinoxes.

Front

What is the spinning of an object on its axis called?

Back

Rotation.

Front

What is an equinox?

Back

An equinox is when the sun is directly above Earth's equator.

Front

What does the letter D represent in the diagram of the Earth's position on the vernal equinox?

Back

The Earth's position on the vernal equinox.

Front

What is the term for the path an object takes as it moves around another object in space?

Back

Orbit.

Front

What is the difference between rotation and revolution?

Back

Rotation is the spinning of an object on its axis, while revolution is the movement of one object around another.

Front

What happens during a solstice?

Back

A solstice occurs when the sun reaches its highest or lowest point in the sky at noon, marking the longest and shortest days of the year.

Front

What is the significance of the summer solstice?

Back

The summer solstice marks the longest day of the year in the Northern Hemisphere.

Front

What is the significance of the winter solstice?

Back

The winter solstice marks the shortest day of the year in the Northern Hemisphere.