Science CA 2 Review

1. There is a long seesaw in the schoolyard at James' school. James likes to play on the seesaw with his friend Martin. The seesaw in the schoolyard is long enough that when James is in the air, his feet are as high up as other children's heads. What force makes the seesaw work? A Gravity B Temperature C Electricity D Magnetism

2. The picture below shows temperatures taken at the same time in Phoenix and Tucson on Monday, Tuesday, and Wednesday. Which of the following is correct about the temperatures in these two cities? A The temperature was warmer in Phoenix than in Tuscon on Monday, but was warmer in Tucson than Phoenix on Tuesday and Wednesday. B The lowest temperature for both Phoenix and Tucson was on Tuesday. C The highest temperature for Phoenix was on Wednesday, and the highest temperature for Tuscon was on Monday. D The temperature was warmer in Phoenix than in Tuscon on Monday, Tuesday, and Wednesday.

3. The picture below shows what happens to a black fabric and white fabric when placed in sunlight. Sunlight Sunlight going in bouncing off As the light energy goes toward the fabrics, it will make the — A black fabric is lighter than the white fabric because light energy is bouncing off of the white fabric. B white and black fabric become the same color because they will both take in and bounce off the same amount of light energy. C white fabric is warmer than the black fabric because light energy is bouncing off of the white fabric, while the black fabric is taking in light energy. D black fabric is warmer than the white fabric because light energy is going into the black fabric, while it is bouncing off the white fabric.

4. Krystal accidentally fell asleep while playing her computer. In the middle of the night, the light and sound of the computer woke her up. She went to turn it off, and she noticed that the computer felt warm. What happened when Krystal turned off the computer? A The computer stopped making light energy, only. B The computer stopped making light and sound energy, but it still made thermal energy. C The computer stopped making thermal and sound energy, but it still made light energy. D The computer stopped making light, thermal, and sound energy.

5. The temperature of the liquid in the containers was most likely changed by using — Alight energy Bsound energy Cthermal energy Dmechanical energy

6. A student heard that all metals are magnetic. He does an investigation and records his observations below. Is It Magnetic? According to his evidence, what does he discover? A All metals are magnetic. B Metals are not magnetic. C Round metals are magnetic. D Some metals are magnetic. ObjectYesNo IronX Gutter nailsX NickelX MedalsX

7. Morgan left her tablet on while she went in the living room. When she returned, she noticed the tablet felt warm when she picked it up. Which of the following is the most likely reason that the tablet was warm? A Lisa left the tablet near a heater. B The battery in the tablet is not working correctly. C The tablet produces heat as well as light. D Lisa's hands got cold while she was in the living room.

8. Which of the following is correct about the wind blowing in each city? Wind socks Desoto Detroit A The wind is blowing West in Desoto, and in Detroit the wind is blowing northwest. B The wind is blowing Southeast in Desoto, and in Detroit the wind is blowing Southwest. C The wind is blowing West in Desoto, and in Detroit the wind is blowing East. D The wind is blowing Southwest in Desoto, and in Detroit the wind is blowing southeast.

9. The picture below shows two graduated cylinders that Chris used to catch rain water in his backyard and at his school playground. Graduated Graduated cylinder cylinder Rain water Rain water Chris’s Backyard Chris’s School’s Playground What do the graduated cylinders show? A Chris's backyard got a lot of rainfall, but his school's playground got very little rainfall. B Chris's school's playground got a lot of rainfall, but his backyard got very little rainfall. C Chris's school's playground and his backyard both got about 16 mm of rainfall. D Chris's backyard and his school's playground both got about 12 mm of rainfall.

10. Lashonda was studying mechanical energy in science class. She noticed several possible examples of mechanical energy in her environment. Which of the following is an example of mechanical energy? A. A battery that has not been used B. A lamp that is not plugged in C. A garden hose with moving water D. A windmill that is standing still

11. Marcus places a magnet over a key, and the key moves to and sticks to the magnet. If Marcus places a piece of paper on top of the key and places the magnet over the key again, then the key would — A attract to the magnet because paper is not thick enough to block it. B repel because the paper will block the attraction. C attract the magnet because paper is also magnetic. D stay still.

12. The picture below shows paper clips, E, F,G, and H, placed at different distances away from a magnet. Use the picture to answer any questions that follow. E F G H If paper clips E, F, and G were the only ones that moved toward the magnet, then the magnet does NOT work well at picking up paper clips more than — A 10 centimeters away. B 5 centimeters away. C 7 centimeters away. D 4 centimeters away.

The picture below shows paper clips, E, F,G, and H, placed at different distances away from a magnet. Use the picture to answer any questions that follow. E F G H 13. Which paper clip has the least chance of moving toward the magnet? A E B F C G D H

14. A ball is released at the top of each of the ramps below. From which ramp will the ball travel the Farthest across the floor? A B C D

15. What will happen when to balls are going in the same direction towards each other. A The faster moving ball will push the other ball out of the way, leaving the faster ball’s direction unchanged. B The balls will push each other, changing the motion and direction of each ball. C The slower moving ball will pull the other ball, reversing the direction and position of the slower ball. D The balls will pull each other, changing the motion and direction of each ball.

16. The picture below shows a rotating wind turbine. What causes the wind turbine to move? A The wind pulls on the blades, moving the turbine around. B The wind pushes on the blades, moving the turbine around. C The wind pushes on the wind turbine tower, sending an upward force that turns the turbine. D The wind pulls on the wind turbine tower, sending an upward force that turns the turbine.

17. Ryan was on his scooter when he pushed his foot against the ground and then kicked it behind him, as shown in the picture below. What happened when Ryan kicked his foot against the ground? A The scooter began to slow down. B The scooter began to speed up. C The scooter began to rise up off the ground. D The scooter began to move backward.

18. The picture below shows A'dia kicking a ball toward a wall. What will the ball do as soon as it leaves A'dia's foot? A It will move toward A'dia and then come to a complete stop. B It will move toward A'dia, hit A'dia's feet, and move around A'dia. C It will move away from A'dia and hit the wall. The wall will then push back on the ball, making the ball go back toward A'dia. D It will move away from A'dia and hit the wall. The ball will then come to a complete stop as soon as it touches the wall.

19. The table below shows the weather on the same day and at the same time in four cities: Dallas, San Antonio, Houston, and Odessa Which of the following is correct about the weather in these four cities? A The temperature was warmest in cities with cloudy weather. B The temperature was coldest in the cities with sunny weather. C The temperature was warmest in cities where the wind was strong. D The temperature was coldest in cities where the wind was strong.

20. In softball, the pitcher throws the ball underhand to the batter. The batter uses a bat to try to hit the ball. What will MOST LIKELY happen to the ball if the batter hits it? A It will stop and fall to the ground. B It will hit the fence behind the batter. C It will fly in the air and hit the coach. D It will change direction, going back toward the pitcher or somewhere in the field.

1.A 2.D 3.D 4.D 5.C 6.D 7.C 8.D 9.C 10.A 11.A 12.C 13.H 14.A 15.B 16.B 17.B 18.C 19.D 20.D