Unit 5 Patterns in the Night Sky

Front

What is the tilt of the Earth?

Back

The tilt of the Earth is approximately 23.5 degrees from vertical, which affects the seasons and daylight hours.

Front

What causes day and night on Earth?

Back

Day and night are caused by the rotation of the Earth on its axis, which takes about 24 hours.

Front

What is the difference between rotation and revolution?

Back

Rotation is the spinning of the Earth on its axis, while revolution is the movement of the Earth around the Sun.

Front

How long does it take for the Earth to complete one rotation?

Back

It takes 24 hours for the Earth to complete one rotation.

Front

How long does it take for the Earth to revolve around the Sun?

Back

It takes one year for the Earth to revolve around the Sun.

Front

What is an axis?

Back

An axis is an imaginary line that runs from the North Pole to the South Pole, around which the Earth rotates.

Front

What is the position of the Earth during daytime?

Back

During daytime, the side of the Earth facing the Sun experiences daylight.

Front

What are the orbits of the Earth, Sun, and Moon?

Back

The Earth orbits the Sun, and the Moon orbits the Earth in a path that is elliptical.

Front

What is the significance of the Sun's rays hitting the Earth?

Back

The angle at which the Sun's rays hit the Earth affects the temperature and the length of daylight hours.

Front

What is a solar system?

Back

A solar system is a collection of celestial bodies, including a star (like the Sun) and the planets that orbit it.