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A rock's properties matter - Online practice 1
Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.
Read before answering
Fictional controlled absorption test: equal-sized rock samples each receive 10 ml of water for the same time. A absorbs 2 ml; B absorbs 7 ml. Consider a surface chosen for lower water absorption. This is only one property and one test, not a building recommendation. An adult handles real safe samples and water.
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