We have seasons because the Earth orbits the Sun, and because the Earth is ____. During the Winter, the North pole is tilted away from the Sun. During the Summer, the North Pole is tilted towards the Sun. The journey that the Earth makes around the sun is called an ____. We have day and night because the Earth rotates on its ____. A day on Earth lasts ____ hours. A year on Earth lasts 365.25 days, which means that every 4 years we have a leap year. The time taken for the Earth to rotate on its axis it is called the rotational speed. Our Sun is a ____. Our Sun is ____ which means it generates its own light. A ____ is a group of stars that are named because they make a particular shape.

Constellations

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