The Solar System—Unit Quiz Continued NameDate

Name______Date______

Directions: Read each question and choose the best answer.

1. Which of these is the best way 3. Moon is to planet as planet to describe our solar system? is to ______. a It is a group of stars a orbit c star revolving around a b Neptune d dwarf planet single object. 4. Which of these phrases would b It is a group of objects be a useful way to remember revolving around a the names and order of the single star. eight planets, listed from c It is a single star revolving nearest the Sun to farthest around a group of objects. from the Sun? d It is a single object revolving a My Very Energetic Mother

around a group of stars. © iStockphoto.com/George Argyropoulos Just Served Us Nachos 2. Which of these b My Excellent New Violin facts about the Usually Sounds Mighty Jazzy Sun is not true? c Neighbors Using Spicy a It is much larger Juice Might Enjoy than most other stars. Vegetable Mixtures b It provides energy in the d Every Jar Under My Nose form of light. Smells Very Moldy © iStockphoto.com/George Argyropoulos c Gravity holds the planets in orbit around the Sun. d It is about 150 million kilometers (93 million miles) from Earth.

5. Which planets are the largest 9. Which statement about planets ones in our solar system? and their moons is true? a Venus and Earth a Every planet in our solar system has at least one moon. b Saturn and Jupiter b The Sun’s size is the reason c Mars and Mercury that moons orbit planets. d Neptune and Uranus c Every moon in our solar 6. Which of these Corporation © Jupiterimages system revolves around, planets would or orbits, its planet. probably be safest d All the moons in our solar to land on because system are covered with of its solid surface? oceans and clouds. a Neptune c Jupiter b Uranus d Mars

7. Which planets are the © Jupiterimages Corporation gas giants? a Saturn and Venus b Mars, Earth, Venus, and Mercury 10. What makes Earth different c Neptune, Uranus, Saturn, and Jupiter from any other planet? a It is the only planet known d All of the above to have living things on it. 8. If you passed between Mars and Jupiter, and saw an area b It is the only planet known with rocks of different sizes to have liquid water on its floating through space surface. together, what would they c It is the only planet known most likely be? to have air that is safe for animals to breathe. a comets c planets d All of the above b asteroids d moons Unit Quiz continued on following page © Learning A–Z, Inc. All rights reserved. www.sciencea-z.com ASSESSMENT The Solar System—Unit Quiz continued Name______Date______

Directions: Use the table to answer questions 11–13. (The planets are listed in alphabetical order.)

FAST FACTS ABOUT THE PLANETS IN OUR SOLAR SYSTEM

Diameter Number of Planet Period of rotation Period of revolution (km) known moons 23.96 Earth hours 365.24 Earth days Earth 12,756 1 (1 Earth day) (1 Earth year) Jupiter 142,984 9.9 Earth hours 11.9 Earth years 63

Mars 6,794 24.6 Earth hours 687 Earth days 2

Mercury 4,879 59 Earth days 88 Earth days 0

Neptune 49,528 16.1 Earth hours 164.8 Earth years

Saturn 120,536 10.7 Earth hours 29.4 Earth years 60

Uranus 51,118 17.24 Earth hours 84 Earth years 27

11. Using the diameter information 13. Which planets rotate faster from the table, which of these than Earth does? lists places planets in the correct a Jupiter, Neptune, order, from largest to smallest? Saturn, and Uranus a Venus, Jupiter, Mercury b Mars, Mercury, and Venus b Neptune, Uranus, Mars c All of the other planets c Mercury, Venus, Earth rotate faster than Earth does. d Saturn, Uranus, Earth d None of the other planets rotate faster than Earth does. 12. What belongs in the blank box? 14. Extended Response: Choose a a the diameter of Venus planet in our solar system other b Saturn’s period of revolution than Earth. First, describe how c the number of known it is different from Earth. Then moons that Neptune has explain whether or not you would want to visit it and why. d the number of known moons that Mercury has

I=inferential V=vocabulary L=literal/recall D=data analysis

14. Extended Response: Responses will 1. b L vary but must address both parts of 2. a L the question.

3. c V For the first part of the response, students should select a planet other 4. a I than Earth and describe one or more 5. b L ways it differs from Earth. These differences may include: facts from the 6. d I data table in this quiz, descriptions of 7. c L each planet’s appearance, the fact that the other planet is not known to sustain 8. b V life or to have surface water, or other accurate information that contrasts the 9. c I two planets. 10. d L For the second part of the response, 11. d D students should explain whether or 12. c D not they would want to visit the planet they chose and why. Responses will 13. a D vary. Reasons should support the choice to visit or not visit and may include: an interest in learning more about the planet; an eagerness to see special features up close; concerns about the time it would take to travel there and back; concerns about the availability of air, food, water, shelter, family, and friends; or any other valid reasons.

The Solar System—Unit Quiz Continued Name______Date______

The Solar System—Unit Quiz Continued NameDate