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Trimester 1 science_review

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1. Science 2. If something breaks in the science laboratory, the safest thing to do isa. Throw away the broken equipment in the nearest trash can.b. Swap your broken equipment for another groups unbroken equipment.c. Report the broken equipment to the science teacher immediately.d. Report the broken equipment to the science teacher during homeroom the next day. 3. Earths layers formed as rocks melted anda. heavier and lighter elements separated.b. lava from volcanoes covered Earth.c. different landforms developed.d. earthquakes caused elements to settle. 4. 1000There are _________ meters in akilometer. 5. The moons pull is strongest at the placeon Earth that isa. opposite the moon.b. directly facing the moon.c. opposite the sun.d. directly facing the sun 6. The daily change in the level of oceantidewater is called a ___________. 7. If you want to measure the mass of an object in the laboratory, the best tool to triple-beam balance use is a _________________________. 8. What happens when the moon is waxing?a. The sunlit part we see appears to get larger.b. The sunlit part we see appears to get smaller.c. The sunlit part we see appears to stay the same.d. The sunlit part we see appears to go away. 9. Nitrogen and Oxygen mainly make upEarthsa. Coreb. Mantlec. Crustd. Atmosphere 10. Early life-forms released oxygen intoEarths atmosphere through the processofa. photosynthesis.b. oxidation.c. osmosis.d. pollination. 11. Why dont solar and lunar eclipses occur every month?a. The moons orbit is an ellipse.b. The moons distance from Earth changes.c. The shadows do not line up correctly.d. The moons orbit is tilted. 12. If the moon completely covers the sun, weare having aa. total solar eclipseb. Partial lunar eclipsec. Tidal bored. Neap tide 13. What causes the phases of the moon?a. the relative positions of the moon, Earth, and the sunb. the tilted orbit of the moonc. the moons period of revolution just equals its period of rotationd. sunlight reflecting off Earths surface 14. Each planet moves around in the sun in a path the shape of a circle. a path the shape of a spiral. a path the shape of an ellipse. similar-sized orbits. 15. During which moon phases does Earthexperience spring tides?a. Full and new moonb. 1st and 3rd quartersc. Gibbous phasesd. Crescent phases 16. The 23.5o tilt of Earths axis is the primaryreason that Earth hasa. Rotationb. Eclipsesc. Seasonsd. Day and night 17. How do the inner planets differ from theouter planets?a. They are composed mostly of gases.b. They do not have any moons.c. They are extremely large.d. They have hard, rocky surfaces. 18. Making measurements with tools such as thermometers is a kind ofa. hypothesis.b. conclusion.c. prediction.d. observation. 19. The ways in which scientists answerquestions and solve problems is knownasa. Datab. Scientific methodsc. Observationd. Hypothesis 20. The time required for the Earth to rotate dayonce on its axis is called a ________. 21. Which planet is the third from the sun?a. Jupiterb. Earthc. Marsd. Venus