Science 9.1

Front

What causes different seasons on Earth?

Back

The tilt of the Earth on its axis.

Front

What do we call the time when the sun shines on a part of Earth?

Back

Daytime.

Front

When do equinoxes occur?

Back

Equinoxes occur in March and September.

Front

Where does sunlight hit the Earth's surface most directly?

Back

At the equator.

Front

What happens when part of Earth is turned away from the sun?

Back

It is nighttime.

Front

What is the term for the position of the Earth in relation to the sun that affects seasons?

Back

Earth's tilt.

Front

What is an equinox?

Back

An equinox is a time when day and night are of equal length, occurring in March and September.

Front

What is the significance of the equator in terms of temperature?

Back

The equator has little variation in temperature due to direct sunlight.

Front

What are the two solstices in a year?

Back

The summer solstice and the winter solstice.

Front

How does the Earth's revolution affect seasons?

Back

The Earth's revolution around the sun, combined with its tilt, causes the changing seasons.