HCMS_Science_8th Grade

Transcription

1 Instructions: Copyright Measured Progress, All Rights Reserved

2 : Use the graph below to answer question If the last 3 points on the graph indicate a trend, the average temperature at 25,000 feet would most likely be about A. 35 C. B. 45 C. C. 55 C. D. 65 C. 2. Sedimentary rocks are typically formed A. by erupting volcanoes. B. under great pressure and high temperatures. C. below Earth s surface. D. from materials that settle. 2

3 : Use the map below to answer question You are planning to hike across Sloan s Island from west to east, as shown above. Which part of your hike would be steepest? A. from point P to point Q B. from point Q to point R C. from point R to point S D. from point T to point U 4. Which accurately describes the relationship between earthquakes and volcanoes? A. Earthquakes usually cause volcanoes to erupt. B. Volcanic eruptions usually cause severe earthquakes. C. Earthquakes and volcanoes often are located where tectonic plates meet. D. Earthquakes and volcanoes are not related in any way. 5. In the geocentric model of the solar system, the motion of the Sun across the sky is due to A. the rotation of Earth on its axis. B. the motion of Earth around the Sun. C. the motion of the Sun around Earth. D. the tilt of Earth s axis. 3

4 : Use the diagrams below to answer question Which diagram shows how the Indian plate and the Eurasian plate are causing the Himalayan mountains to increase in height? A. Diagram A B. Diagram B C. Diagram C D. Diagram D 4

5 : Use the map below to answer question In which direction does the river flow? A. north B. south C. east D. west 5

6 : 8. While walking along a riverbank, Sharon and Tim found a small, shiny, golden-colored rock. Tim is convinced that they found gold, and that they can get rich by continuing to explore the riverbank. Sharon thinks the rock might be pyrite (fool s gold). Describe two physical property tests Sharon and Tim could use to determine whether the rock is actually gold. Explain why each test is important in determining the identity of the rock. 9. Which is closest to the temperature in your classroom? A. 50 C B. 35 C C. 20 C D. 10 C 10. Most modern cities obtain their drinking water from A. surface reservoirs. B. rivers and streams. C. underground reservoirs. D. desalinated ocean water. 6

7 : 11. The highest point of a wave is its A. crest. B. breaker. C. trough. D. swell. Use the diagram below to answer question The diagram shows how water moves in the water cycle in a specific area. Letters A through F represent processes that occur during the water cycle. Suppose more water moves at processes B and C than at process D. What is most likely to happen to processes E and F? A. They will decrease. B. They will increase. C. They will remain the same. D. They will increase, then decrease. 7

8 : Use the picture of the thermometer below to answer question Which kind of precipitation is most likely to occur at this temperature? A. thundershowers B. light rain C. snow D. hail 14. Describe two natural destructive forces that cause long-term (more than 1000 years) changes in Earth s surface. 8

9 : 15. An astronomer observes a neutron star that has formed after a supernova. It is spinning rapidly and emitting radio waves. This star is a A. supergiant. B. black hole. C. nova. D. pulsar. Use the picture below to answer question A beach ball is placed on the wave crest at point C. As the wave passes, the beach ball will A. move to point A. B. move to point B. C. stay at point C. D. move to point D. 9

10 : Use the chart below to answer question Which magnitude shown on the chart occurs most frequently? A. 5.0 to 5.9 B. 7.0 to 7.9 C. 3.0 to 3.9 D. 4.0 to

11 : Use the map below to answer question Assume that cold fronts can move across an average of two to three states per day. Based on the weather map on June 10, which of the following cities is most likely to have cooler weather on June 11 than it did on June 10? A. Atlanta B. Cincinnati C. Denver D. Los Angeles 11

12 : 19. Which step in the water cycle returns water to the atmosphere? A. evaporation B. condensation C. precipitation D. saturation 20. Rivers never form from A. glaciers. B. springs. C. lakes. D. oceans. 21. When the Moon goes through Earth s shadow, we see a A. solar eclipse. B. lunar eclipse. C. total eclipse. D. planetary eclipse. 22. When mud and water are combined, the result is A. a mixture. B. a compound. C. an element. D. a molecule. 12