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Download South Carolina Sample Questions 8th Grade Science
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South Carolina Sample Questions 8th Grade Science 1. Caroline tested the rate of evaporation for 4 liquids by placing 100 mL of each liquid into separate Petri dishes. She waited 24 hours before measuring the amount of liquid left in each dish. The results are shown in the table. 3. Based upon this data, what can be concluded about the evaporation of liquids? Which statement is true about the relationships among the fossils? A Fossils in layer R are the oldest of all the fossils. A All liquids evaporate if enough time is allowed. B Layers U and V contain the most complex fossils. B Different liquids evaporate at different rates. C Fossils in layers S and T are younger than those found in layers U and V. C The amount of water in a liquid will determine the rate of evaporation. D Fossils in layers T and U are more complex than those in layers R and S. D Liquids evaporate more quickly in warm temperatures than in cold temperatures. 2. Examine the layers of undisturbed sedimentary rock. Which type of wave requires particles to vibrate in order for energy to be transferred? 4. A microwaves What is the primary cause for continental drift, earthquakes, and volcanic eruptions? A heat from the Earth’s crust B erosion of the Earth’s crust B sound waves C convection currents in the mantle C ultraviolet rays D magnetic currents between the poles D X-rays Published by TE21, Inc. 1-877-628-3860 www.case21inc.com 5. Use the model of the Earth to answer the question. 6. Demario throws a 10-pound weight and a 2-pound weight with the same force, but the 2-pound weight travels faster than the 10-pound weight. Why does this happen? A The 2-pound weight has more inertia. B The 10-pound weight has less friction. C The 2-pound weight has less mass to move. D The 10-pound weight takes less force to move it. Which location is experiencing winter? A location A B location B C location C D location D Published by TE21, Inc. 1-877-628-3860 www.case21inc.com