1. Between the orbits of planets in our solar system, groups of many small rocks revolve around the sun. What are these groups of rocks known as?Answer Choices A satellites B asteroidsC black holes D orbits

2. Between the orbits of planets in our solar system, groups of many small rocks revolve around the sun. Which of the following choices does the model show best?A. the time it takes for the planets to revolve around the sunB. the direction the planets revolve around the sunC.  the precise size of the planets and the sunD. the approximate position of the planets in relationship to one another

3. What is the primary energy source that drives all weather events, including precipitation, hurricanes, and tornados?Answer Choices A the SunB the Moon C Earth's gravity D Earth's rotation

4. It is now known that Pluto is much smaller than once believed. Recently, the definition of a planet changed. Pluto is now classified as a dwarf planet. What does this example best illustrate?Answer Choices A Planets are constantly changing size. B Scientists disagree on many issues. C Scientific knowledge changes as new information is discovered.D Earth will be classified as a dwarf planet one day. 

5. What is the temperature shown on the thermometer below?Answer Choices A 15°C B 22 °CC 34°C D 41°C

6. The map below shows the location of the Gulf Stream, an ocean current that moves tropical water along the east coast of the United States.Which of the following statements best  describes how the Gulf Stream affects the weather along the east coast?Answer ChoicesA It makes the air less humid and brings less rain to the area. B It makes the air temperature cooler and the winds stronger. C It makes the winds stronger and brings less rain to the area. D It makes the air temperature warmer and air more humid.

7. Which of the following statements best explains why it is warmer at the equator than at the North Pole?Answer Choices A The equator has a larger area than the North Pole. B The equator is closer to the Sun than the North Pole. C The equator receives more direct sunlight than the North Pole.D The equator has more hours of daylight per; year than the North Pole.

8. Which of the following sets of drawings shows how the Moon's shape could have changed during the month of June? Answer Choices A BCD

9. Which planet has a rocky surface with canyons and volcanoes?Answer Choices A MarsB Saturn C Jupiter D Uranus

10. Which of the following is not directly caused by the force of gravity?Answer ChoicesA the revolution of Earth around the Sun B the formation of tides on  Earth C the occurrence of volcanoes on EarthD the position of Earth's moon

11. The water cycle shows some ways water moves through the air and land.Which process provides the water vapor that forms clouds?Answer Choices AThe sun warms the ocean surface, causing evaporation.B Cool ocean currents cause water vapor to form. C Waves cause drops of water to splash around. D Winds force the water surface to cool, causing condensation.

12. The following diagram shows the relative positions of the sun, moon, and the Earth at a particular time.Based on the diagram, which moon phase can be seen from Earth?Answer Choices A full moon B new moonC crescent moon D quarter moon

13. The given table lists the approximate time taken by each planet to complete one rotation on its axis.This table shows that Jupiter rotates the fastest on its axis. What other information is shown?Answer Choices A Earth and Mars rotate at approximately the same speed.B Mercury and Venus rotate at approximately the same speed. C Neptune rotates faster than Saturn. D Saturn rotates slower than Mars.

14. Which of the following pictures shows the appearance of the Moon when a solar eclipse occurs?Answer Choices ABCD

15. Which of the following statements best explains why stars appear to move across Earth's sky each night?Answer ChoicesA Earth rotates on its axis.B stars orbit each other. C Eath revolves around the sun. D The stars rotate with the moon.

16. Look at the diagram below. Under these conditions, which weather event will most likely occur?Answer Choices A monsoon B tornado C hurricaneD hail storm

17. Some early scientists believed that Earth was in the center of the solar system and everything revolved around it. Later discoveries proved this wrong. What is most valuable about this early hypothesis, even though it was incorrect?Answer Choices A Through investigating this hypothesis, scientists gained useful information about the universe.B Through investigating this hypothesis, scientists found it to be true at the time. C Because it was disproved, this hypothesis had no scientific value. D This hypothesis explained earth cycles better than modern theories.