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If the blocks are the same size, which one is the densest?

If the blocks are the same size, which one is the densest?. A. Block A. 40g. 80g. 120g. 180g. B. Block B. A B C D. C. Block C. D. Block D. CORRECT. Electrical energy is transformed into what kind of energy in a light bulb? A. Light energy only

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If the blocks are the same size, which one is the densest?

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  1. If the blocks are the same size, which one is the densest? A. Block A 40g 80g 120g 180g B. Block B A B C D C. Block C D. Block D

  2. CORRECT

  3. Electrical energy is transformed into what kind of energy in a light bulb? A. Light energy only • Heat energy and mechanical energy • Light energy and heat energy • Light energy and mechanical energy A B C D

  4. CORRECT

  5. In order to start or stop motion, an object must be acted on by which of the following? A. The Earth B. an outside force C. acceleration D. friction A B C D

  6. CORRECT

  7. A truckload of sand was delivered to the school playground. It rained for a week. The sand was no longer a hill. What probably happened to the sand? A. It was eroded. B. It erupted. C. It was fossilized. D. It evaporated. A B C D

  8. CORRECT

  9. The reason that the Earth has seasons is best explained by which statement? • The Earth has a moon. • The Earth rotates on its axis. • The Earth revolves around the sun, and it is tilted 23 degrees. • The Earth has a night and day. A B C D

  10. CORRECT

  11. What does an herbivore eat? A. insects B. both plants and animals C. plants D. other animals A B C D

  12. CORRECT

  13. The Florida panther needs large wilderness areas for its survival. For many reasons, the Florida panther is down to 30 to 50 individuals. What is one explanation? • Large areas of wilderness are being destroyed for new homes. • Florida is becoming colder. • The panthers are moving closer to cities. • Florida’s population is decreasing. A B C D

  14. CORRECT

  15. Knowledge of science can help you in many ways. Which of the following statements is one way science knowledge helps people? • Heavy objects can be moved. • Extinct organisms can be revived. • Weather can be controlled. • All resources can be renewed. A B C D

  16. CORRECT

  17. Which of the following tools can BEST help you understand the human body? • Telescope • Microscope • Gyroscope • radiometer A B C D

  18. CORRECT

  19. When one end of a steel rod is held in a flame, the other end of the rod gets hot. • This happens because steel makes its own heat. • This happens because steel is a conductor of thermal energy. • This happens because steel makes the flame hotter. • This happens because steel keeps cold away from the flame. A B C D

  20. CORRECT

  21. Janice notices that air rising over the mountains forms clouds. Sometimes precipitation occurs before clouds pass over the mountains. Why does this occur? • The speed of the air increases. • The air gets colder as it rises. • The air gets hotter because it is closer to the sun. • Pressure increases as the air moves up, forcing moisture out of the clouds. A B C D

  22. CORRECT

  23. Which of the following makes its own light? • The Earth • Any planet • A star • The moon A B C D

  24. CORRECT

  25. Muscles can be made up of any of three types of muscle cells. What do all muscles have in common? • They move parts of your body. • They support you body. • They carry oxygen throughout the body. • They send messages to the brain. A B C D

  26. CORRECT

  27. Roberto observed the growth of a tomato plant for three months. Which of the following is a good way for Roberto to communicate his observations? • Pick the tomatoes to show the growth of the plant. • Put the plant in a dark closet for three months. • Record observations, measure the height daily, and make a graph to show growth. • Give the plant extra fertilizer. A B C D

  28. CORRECT

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