1.03 be able to name uses of rocks. Students experience and learn about the world through their senses. Data should be appropriate, accurate, and free of bias. Records of observations and experiments are to be accurate and free of bias to ensure scientific comparison of data. But they are not all the same.
Rocks are pieces of the earth.
The earth is made of rock. If you dig into the ground, you will eventually hit rock. In many places, rocks stick out of the ground. Not all rocks look the same because they were made from different things in different ways. Some rocks are hard, some are soft, some are shiny, some are dull, and some are rough.