Spaceship Earth

Front

What can tell you what season it is in the night sky?

Back

Constellations

Front

How long is a year?

Back

The time it takes Earth to orbit the Sun.

Front

When the northern hemisphere is tilted toward the sun, what season is it?

Back

Summer

Front

Why are there 24 hours in a day?

Back

The Egyptians saw that there were 12 finger segments on each hand. 12 + 12 = 24.

Front

What are exoplanets?

Back

Planets outside of our solar system.

Front

What is the main reason for the seasons on Earth?

Back

The tilt of Earth's axis as it orbits the Sun.

Front

What is the shape of Earth's orbit around the Sun?

Back

An ellipse.

Front

What causes day and night on Earth?

Back

The rotation of Earth on its axis.

Front

What is a solar eclipse?

Back

When the Moon passes between the Earth and the Sun, blocking the Sun's light.

Front

What is a lunar eclipse?

Back

When the Earth passes between the Sun and the Moon, casting a shadow on the Moon.