Stars are made of hot, glowing gases. The Sun is not a star.

1. YES NO Stars are made of hot, glowing gases. The Sun is not a star. Why does the Sun seem brighter and larger than other stars? What is larger? The Earth or The Sun The Earth needs the Sun for a source of light and heat. Without the Sun people, plants and animals could not live on Earth. An imaginary line through the center of the Earth is called Rotation C. Orbit Axis D. Constellation The Earth is always spinning on its axis. How many complete rotations does the Earth make each day? A. 1 B. 2 C. 3 D. 4 YES NO YES NO YES NO YES NO

2. If your side of the Earth is facing away from the sun is it day night. How many hours does it take for the Earth to make one complete rotation? _________ When your side of the Earth is facing the sun you have day night. What is spinning on an axis called? Rotation C. Orbit Phase D. Axial When does the Sun look low in the sky? In the middle of the day. Early in the morning and in the evening. Only early in the morning. The Sun is not always shining. The Sun really does move across the sky. Why does the Sun look like it is moving across the sky? YES NO YES NO

3. The Earth is tilted on its axis one way during the summer and a different way during the winter. The Earth spins on its axis. An ___________________ is a path around another object. How long does it take the Earth to orbit the Sun? 12 hours C. 24 hours 6 months D. 1 year What 2 things cause the seasons to change? 1. 2. What season is it when the part of the Earth where we live is tilted away from the Sun? Summer Spring Winter Fall YES NO YES NO

4. What season is it when the part of the Earth where we live is tilted toward the Sun? Summer Spring Winter Fall What season is it when the part of the Earth where we live is beginning to tilt toward the Sun? Summer Spring Winter Fall What season is it when the part of the Earth where we live is beginning to tilt away from the Sun? Summer Spring Winter Fall What is a star that you can see during the day?

5. A group of stars that form a picture is called a _____________. Sun C. Constellation Cluster D. Grouping What is the largest and brightest object in the night sky? _____________________ The moon has mountains and deep craters. A crater mountain is a hole in the ground that is shaped like a bowl. A crater is formed when a large rock from space hits the Moon. The moon only has one crater. The moon does not rotate. The Moon orbits the Earth. The Moon moves around the Earth while the Earth moves around the Sun. How long does it take for the Moon to move all the way around the Earth. 4 hours C. 4 weeks 4 months D. 4 years YES NO YES NO YES NO YES NO YES NO YES NO

6. Why can we see the Moon? The shape of the lighted part of the Moon is called a phase. The Earth is the only object that orbits the Sun. The planets and their moons and other objects that move around the Sun are called the solar system. What is the center of our solar system? _____________________________ How many planets are there? 7 C. 9 8 D. 10 How many days does it take for the Earth to orbit the Sun? 88 days C. 225 days 365 days D. 687 days Which star is closest to the Earth? The Moon B. The Big Dipper The Sun D. Leo YES NO YES NO YES NO

7. Draw a line on the Earth to show the Earths axis if it were winter where you are. What is caused by the Earth’s rotation? Why does it take Earth 365 days to orbit the Sun while it takes Mars 687 days to orbit the Sun? You are here!

8. Number the correct picture 1. Constellation 2. Solar System 3. Earth 4. Axis 5. Phase 6. Crater 7. Orbit Draw an arrow to the side of the Earth that has daylight and put and X on the side of the Earth that has night.

9. Yes No Because it is closest to the Earth The Sun Yes Yes B Yes 1 Night 24 Day A B No No Because the Earth is rotating No Yes Orbit D Tilt of the earth Earth’s orbit around the sun C A B D The Sun C The Moon Yes Crater Yes No No Yes Yes C Because it reflects the light from the sun Yes No Yes The Sun C B B Day and night Because the Earth is closer to the Sun Phase Axis Constellation Earth Orbit Solar system Crater X