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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? A. Block A 40g 80g 120g 180g B. Block B A B C D C. Block C D. Block D
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
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
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
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
What does an herbivore eat? A. insects B. both plants and animals C. plants D. other animals A B C D
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
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
Which of the following tools can BEST help you understand the human body? • Telescope • Microscope • Gyroscope • radiometer A B C D
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
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
Which of the following makes its own light? • The Earth • Any planet • A star • The moon A B C D
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
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