7th Grade Science Assessment Name __________________ RIO Unit 03 – Weather Patterns 1. What is a weather front? (Knowing) A. The boundary between air masses B. A large body of warm air C. The top of a cloud D. A tool used to predict weather 2. Which weather technology has dramatically improved the way meteorologists predict weather in the last 40 years? (Evaluating) A. Fiber Optic cables 5. How do weather balloons help meteorologists predict weather? (Applying) A. By controlling the movement of weather fronts. B. By photographing the movement of weather systems. C. By taking temperature and humidity measurements inside air masses. D. By carrying messages from one weather station to another. B. Satellite images C. Thermometers D. Weather Balloons 3. What kind of air masses form over the Northern Atlantic Ocean? (Analyzing) A. Continental polar The map below shows the major air masses that affect North America. Use this diagram to answer questions 6 and 7. B. Continental tropical C. Maritime tropical D. Maritime polar 4. Which kind of air mass is most likely found far away from the ocean? (Applying) A. Continental B. Maritime C. Polar D. Tropical 6. What are the temperature and humidity of air mass B? (Organizing) A. Cold and dry B. Warm and moist C. Temperature will stay the same. C. Cold and moist D. Warm and dry 7. Which name would be given to air mass E? (Applying) A. Continental Polar B. Continental Tropical D. Temperature will be about 50°F. 10. What would probably happen to the weather conditions if a maritime tropical air mass is cooled by a colder ground surface? (Integrating) A. Becomes foggy or rainy because cool air holds less water vapor. B. Becomes sunny because the cool surface dries the warm air. C. Maritime Polar C. Stays nearly the same but the surface temperature rises. D. Maritime Tropical Use the weather map below to answer questions 8 and 9. D. Stays the same but the surface temperature drops. 11. Which weather conditions are typically found along a weather front? (Applying) A. Clear, cool weather Great Lakes B. Clouds and precipitation C. Violent storms D. Sunny, warm weather 8. What does A represent, and in what direction is it moving? (Analyzing) A. An unmoving stationary front B. A cold front moving north C. A warm front moving south D. A cold front moving south 9. As D moves east, what will happen to the temperature over the Great Lakes? (Generating) 12. What type of front is formed when a warm air mass and a cold air mass meet and neither one can move the other? (Analyzing) A. Cold Front B. Occluded Front C. Stationary Front D. Warm Front 13. What is the major difference between cyclones and anticyclones? (Knowing) A. The direction of their winds A. Temperature will fall. B. How often they occur B. Temperature will rise. C. Their size D. Where they occur 14. A rapidly moving cold air mass meets a slowly moving warm air mass and forms a front. What will most likely occur at this front? (Generating) A. The two air masses will mix together and become the same temperature. B. Warm air will slide under the cold air. The cold air will rise and get warmer. C. The less dense warm air will sink and cool. Clouds will form. D. Cold air will slide under the warm air. Warm air will rise and cool. Clouds will form. A. The warm air at the center sinks, causing the air pressure to increase. Cool air blows toward this area. B. The cool air at the center sinks, causing the air pressure to increase. Cool air blows away from this area. C. The cool air at the center rises, causing the air pressure to decrease. Warm blows toward this area. D. The warm air at the center rises, causing the air pressure to decrease. Cool air blows toward this area. 16. What type of weather conditions are usually associated with a “cyclone”? (Integrating) A. Dry, clear weather The map below shows a swirling center of low pressure (L) called a “cyclone”. Use this map to answer questions 15, 16 and 17. L 15. Which statement best describes what happens to the air in a cyclone? (Evaluating) B. Clouds, wind and precipitation C. Sunny, windy conditions D. Cool conditions with no wind 17. The opposite of a cyclone is an “anticyclone” – a high pressure center of dry air. How would an anticyclone be shown on a weather map? (Applying) A. With an “A” for “anticyclone” B. With a “D” for “dry air” C. With an “H” for “high” D. With a line of blue triangles 19. What weather would you forecast for Monday and Tuesday based on this computer model? (Generating) A. An approaching low-pressure area could bring precipitation. B. An approaching high-pressure area could bring clear skies. Meteorologists use computer models to forecast weather. The graph below shows the predicted air pressure from a computer model. Use the graph to answer questions 18 and 19. Model Prediction 18. Based on the graph, what does the computer model predict will happen to air pressure during Monday and Tuesday? (Analyzing) A. The pressure will decrease. B. The pressure will increase. C. The pressure will stay the same. D. The pressure will drop suddenly on Tuesday afternoon. C. The temperature will probably drop and bring snow. D. The temperature will probably rise and bring hot, sunny weather. 20. Which statement about weather forecasting is most accurate? (Evaluating) A. Computers, radar, and satellites have improved forecasting making even month-long forecasts very reliable. B. Computers, radar, and satellites have improved forecasting making short-term forecasts accurate, but it is still difficult to make longterm predictions. C. Weather forecasting will never be very reliable because weather can change suddenly and computers can’t predict the future. D. Computers, radars and satellites help meteorologists control the weather, making weather forecasts more and more accurate. The diagram below shows two colliding air masses. Use the diagram to answer question 21 & 22. D. West to East 24. Which statement best explains why weather forecasting has improved recently? (Evaluating) A. There is better data collection and more advanced computer technology. B. There are fewer weather changes year to year. 21. What type of front is shown in the diagram above? (Analyzing) A. Cold Front B. Occluded Front C. Stationary Front D. Warm Front 22. Why do clouds form along this weather front? (Integrating) A. There are particles along the front, around which water can condense. B. Warm air cools as it rises, causing water vapor in the air to condense. C. The cold air rises causing water vapor in the air to condense. D. The warm air mass pushes the water vapor out of the cold air mass. 23. The prevailing westerlies and the jet stream are major wind belts over the continental U.S. Which direction do they generally move air masses? (Analyzing) A. East to West B. North to South C. South to North C. Weather forecasters are more experienced. D. There is widespread weather reporting on TV and the internet.