What do we know about Mars? Lesson Review

Transcription

1 Name Class Date What do we know about Mars? Complete the following. 1. What gas makes up most of the atmosphere of Mars? 2. What do scientists think are the reasons that there is no liquid water on Mars now? 3. What is Mars s orbital period? 4. Why does Mars have seasons similar to those on Earth? 5. Describe the surface of Mars. 6. What is the name of the large volcano on Mars? 7. What is Vallis Marineris? Skills: comparing, classifying Decide whether each feature belongs to Earth or Mars or both. Place a check mark in the correct column. 1. Polar ice caps day orbit period hour day 4. Liquid water 5. Volcanoes 6. Seasons Feature Earth Mars Both 7. Dust storms that cover the entire planet 8. Largest known volcano in the solar system 9. Reddish surface 10. Thin atmosphere of carbon dioxide The Solar System

2 Answer Key What do we know about Mars? 1. carbon dioxide 2. The water may be frozen beneath the Martian surface, or it may have boiled away in the thin atmosphere days 4. The tilt of Mars s axis is similar to that of Earth. 5. It is reddish in color and has volcanoes, valleys, polar ice caps, craters, loose rocks, and river channels. 6. Olympus Mons 7. a large 4,000-km-long canyon on Mars s surface 1. Both 2. Mars 3. Both 4. Earth 5. Both 6. Both 7. Mars 8. Mars 9. Mars 10. Mars The Solar System

3 Name Class Date What causes the seasons? Write true if the statement is true. If the statement is false, change the underlined term to make the statement true. 1. When the North Pole is tilted toward the Sun, the Northern Hemisphere has fewer daylight hours. 2. During winter, the combination of fewer daylight hours and less direct rays of the Sun causes lower temperatures. 3. When the Northern Hemisphere is tilted toward the Sun, it has summer. 4. The seasons are caused in part by the tilt of Earth s axis. 5. During summer, the Sun s rays are less direct. 6. Direct rays produce more heat than indirect rays. 7. The seasons in the Northern Hemisphere and the Southern Hemisphere are the same. Skills: interpreting, applying concepts Use the diagram to answer the following. 1. Does Earth revolve around the Sun in a clockwise or counterclockwise direction as viewed from above? 2. a. What season begins in the Northern Hemisphere on December 21? b. What season begins in the Southern Hemisphere on December 21? 3. a. What season begins in the Northern Hemisphere on March 21? b. What season begins in the Southern Hemisphere on March 21? 4. Does the Northern Hemisphere receive direct or indirect rays from the Sun on June 21? 5. Does the Northern Hemisphere have more daylight hours on December 21 or June 21? The Motions of Earth, the Sun, and the Moon

4 Answer Key What causes the seasons? 1. more 2. true 3. true 4. true 5. winter 6. true 7. opposite 1. counterclockwise 2. a. winter b. summer 3. a. spring b. autumn 4. direct 5. June 21 The Motions of Earth, the Sun, and the Moon

5 Name Class Date The Water Cycle Enrichment Activity Skills: identifying, relating, researching PART A List 5 7 activities you do daily that require water. Then, use reference materials to find the average amount of water in gallons that these activities use. Complete the table to show approximately how much water is used by your class, school, and city for each activity. Activity Using Water Water used in activity (gal) Water used by class (gal) Water used by school (gal) Water used by city (gal) PART B Complete the following. 1. Why is it important to conserve water? 2. a. List some ways in which you could reduce the amount of water used in taking a shower. b. List some ways in which you could reduce the amount of water used in brushing your teeth. c. List some ways in which you could reduce the amount of water used in washing dishes by hand. Concepts and Challenges in Life Science, Teacher s Resources CD-ROM Interactions Among Living Things

6 Answer Key The Water Cycle Enrichment Activity PART A Check students tables for accuracy. Tables should list 5 7 activities that use water and the approximate gallons used for each activity. Possible activities include: showering (15-30 gal), brushing teeth (1-2 gal), drinking water daily (1 gal), washing dishes (20 gal) PART B 1. Water is one of our natural resources that is in short supply in some states and countries. Everyone should try to conserve water to prevent our water supply from becoming depleted. 2. a. by not turning on the water until I get in the shower and by shutting off the water in the shower while soaping b. by not letting the faucet run while I am brushing my teeth and by making sure that the water is totally turned off when I am finished c. First fill up the sink with hot soapy water and shut off the faucet. Then, wash all the dishes at one time and place in the other sink. Finally, rinse all the dishes at one time. Concepts and Challenges in Life Science, Teacher s Resources CD-ROM Interactions Among Living Things

7 Name Class Date What is the rock cycle? Use the Key Terms to label the diagram of the rock cycle. You will use some terms more than once. magma igneous rock cooling and hardening heat and pressure melting sedimentary rock weathering and erosion pressure and cementing sediment metamorphic rock Skills: modeling, classifying, applying concepts On the back of this worksheet, draw a rock cycle that shows the formation of quartzite. Use the labels sand, granite, sandstone, and quartzite in your diagram. Identify each substance as an igneous rock, a sedimentary rock, a metamorphic rock, or a sediment. Be sure to include the processes that change one kind of rock to another. Rocks and Their Origins

8 Answer Key What is the rock cycle? Check students labeling for accuracy. All labels will be used once except melting, which appears three times, heat and pressure, which appears twice, and weathering and erosion, which appears twice. Check students drawings for accuracy. Correct classification of rocks: igneous rock granite; sediment sand; sedimentary rock sandstone; metamorphic rock quartzite Rocks and Their Origins

9 Name Class Date What are some effects of plate tectonics? PART A Complete the following. 1. What is the name of the large fault in California? 2. What is a hot spot? 3. What is a magma chamber? 4. Name three features on Earth s surface that can be formed by plate tectonics activity. PART B Match the event or feature of Earth to what caused it. 1. two tectonic plates sliding past each other 2. two tectonic plates carrying continents colliding 3. underground magma chambers forming at subduction zones a. eruption of Mount St. Helens b. San Francisco earthquake of 1906 c. the Hawaiian Islands d. the Himalayas 4. hot spots forming in a tectonic plate Skills: modeling, analyzing, inferring Study the diagram. Then, answer the questions that follow. 1. At what point is the hot spot located? 2. Which volcano is oldest A, B, C, D, or E? 3. a. Which volcano is active? b. Which volcanoes are inactive? 4. Label the location where rocks in the crust melt. Plate Tectonics

10 Answer Key What are some effects of plate tectonics? PART A 1. San Andreas Fault 2. place where magma moves to the surface within a tectonic plate 3. underground pocket of molten rock 4. islands, mountains, and volcanoes PART B 1. b 2. d 3. a 4. c 1. F 2. A 3. a. E b. A, B, C, D 4. Check students label to make sure the arrow points to the hot spot at the surface, point F. Plate Tectonics