Space Practice SR Questions

1. Space Practice SR Questions

2. 1. The motion of the Earth is responsible for several celestial events. • Which of the following events is caused by Earth revolving around the sun? • The days in a year • The hours in a day • The changes in the atmosphere of Earth • The position of the constellations in space

3. 2. Which of these changes on Earth would be likely if Earth were farther from the sun? • Lower temperatures • Higher temperatures • More hours in the day • Fewer days in the year

4. 3. Which of these actions is responsible for the sun appearing to rise and set? • Earth rotation on its axis • The sun rotating on its axis • c. Earth revolving around the sun • d. The sun revolving around the Earth

5. 4. Why is one year on Earth 365 days and one year on Mercury 88 days? • Earth is larger than Mercury. • Earth is smaller than Mercury. • Earth is closer than Mercury to the sun. • Earth is farther than Mercury from the sun.

6. 5. The Little Dipper is a group of stars. During the night, the Little Dipper appears to change positions in the sky. Which of these statements best explains why the Little Dipper appears to change positions in the night sky? • Earth rotates on its axis. • Earth revolves around the stars. • The Little Dipper moves around the sun. • The stars in the Little Dipper move in the sky.

7. 6.The sun appears to rise and set each day. Which statement explains why? a. The Earth rotates b. The sun rotates c. The sun revolves around Earth d. The Earth revolves around the sun

8. 7. Earth’s rotation produces observable effects. For example, the sun appears to move across the sky. Which statement best describes what a person would observe in the state of Maryland? a. The sun rises in the west and sets in the east b. The sun rises in the east and sets in the west c. The sun rises in the north and sets in the south d. The sun rises in the south and sets in the west

9. 8. Each year Earth revolves once around a. Mars b. Venus c. the sun d. the moon

10. 9.. There are hundreds of stars in the sky we can see with our unaided eyes. Using binoculars and telescopes we can see thousands more. Which star is closest to the Earth? a. North Star b. sun c. moon d. Vega

11. 10. The time it takes for a planet to make one revolution around the sun is the planet’s year. The length of Earth’s year is a. 29 1/2 days b. 80 days c. 365 1/4 days d. 240 days

12. 11. We can observe many repeating patterns of celestial events. What causes the repeating pattern of sunrise? a. the moon’s rotation b. the Earth’s revolution c. the sun’s rotation d. the Earth’s rotation

13. 12. During the night, stars appear to move across the sky. This happens because of the Earth’s a. rotation b. revolution c. orbit d. tilt

14. 13. Which of the of the following best explains why some stars and constellations can be seen during different seasons? a. Earth rotates on its axis b. Earth revolves around the sun c. Earth is tilted on an axis d. Earth is closer to the sun

15. 14. Which celestial object is closest to the Earth? a. sun b. Saturn c. North Star d. moon

16. 15. Earth has many properties that make it possible for the survival of life as we know it. Which of the following is not a characteristic of Earth that makes it possible for the survival of life? a. Presence of water (solid, liquid, and gas) b. Optimal distance from the sun c. Irregular shape d. Presence of an atmosphere

17. 16. Mars has many features that could support life as we know it, though no sign of life has been discovered there. Which of the following properties does not need to be present to support life? a. atmosphere b. liquid water c. craters, mountains, and canyons d. appropriate temperature range

18. 17. Our solar system includes one star, eight planets, dozens of dwarf planets, over a hundred moons, and more comets and asteroids than people can count. Which of these celestial objects is at the center of our solar system? a. Pluto b. Earth c. moon d. sun

19. As Earth revolves around the sun, constellations appear in different parts of the sky during different seasons. Some constellations rise high in the night sky in one season and disappear below the horizon in another season. For example, Orion the Hunter appears highest in the sky during winter and is not seen during summer. 18. Which of the following best explains what happens to Orion the Hunter with the change of seasons? The a. brightness of the stars appears to decrease b. location of the stars appears to change c. pattern of the stars appears to change d. color of the stars appears to change

20. Get Ready for the Answers

21. D • A • A • D • A • A • B • C • B 10. C 11. D 12. A 13. B 14. D 15. C 16. C 17. D 18. B