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GCS Grade 6 Science Practice Questions Rock Cycle and Soil Formation
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1. Soil is formed from _____________. *
1 point
2. The decayed organic material in soil is called ____. *
1 point
3. Declan observed a rock that he found at the beach. The rock felt hard, it was yellow, and appeared to be made in layers. Declan concluded that the rock was sedimentary. Which observation BEST supports this conclusion? *
1 point
4. Which of the following might mix a soil creating good-quality soil? *
1 point
5. The picture below shows how a type of rock forms at the bottom of the ocean. What type of rock is this? *
1 point
6. Three funnels were filled with equal volumes of pebbles, fine sand, and coarse sand, as shown in the diagram below. The same amount of water was poured into each funnel. Which correctly lists the order in which the water passed through the funnels, from fastest to slowest? *
1 point
7. Which soil horizon often has a dark color due to the presence of humus? *
1 point
8. Rocks are always changing. The changing of rocks from one type to another is called _________. *
1 point
9. These layers of sedimentary rock were not disturbed after they were deposited. Which layer was deposited first? *
1 point
10. The layers of soil shown in the diagram are correctly referred to as ___________. *
1 point
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