Rocks & Minerals

Use p. 106-111 to answer the questions. Earth's land is made mostly of _. rocks soil minerals sand Which word means a layer of loose materials on Earth's surface that is made up of bits of rocks, humus, air, and water. rock soil mineral gravel boulders large rocks gravel smaller rocks sand tiny pieces of rock Most rocks are made of _. soil sand gravel minerals Which word means solid nonliving materials found in nature? grain rock mineral granite Which word means a small piece that makes up rock or soil? grain rock mineral granite You can use your senses to tell minerals apart by their different _ such as color, hardness, and the streak they leave behind when you rub them against another surface. ideas plans properties hematites The mineral copper will not scratch glass. Instead, glass will scratch copper. Which is harder, copper or glass? copper glass they are the same