Lesson 2 natural resourcesl
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Rocks are hard, nonliving materials that come from the Earth. People use rocks to build, carve statues, and extract salt. Soil is the top layer of the Earth, composed of clay, sand, and humus. Humus contains pieces of dead plants and animals. Soil supports plant growth by providing water and nutrients through clay, sand, and humus.
Lesson 2 natural resourcesl
- 1. What can we observe about rocks and soil? By First grade teachers
- 2. Rocks Are hard NONLIVING thing that comes from Earth. Rocks are a natural resource.
- 3. Ways people use rocks. build Carve statues People get salt from rocks.
- 4. Soil: Top layer of Earth. Sand humus clay S oil Soil is made up of clay, sand, and humus.
- 5. clay sand Pieces of rock
- 6. Humus is pieces Of dead Plants and animals
- 7. People use soil to grow plants. Plants take water and other things they need from soil.
- 8. Worms and other animals may live In soil. Different things may be in soil….. Rocks Dead plants Roots
- 9. Questions Compare some ways people use rocks. How are kinds of soil alike and different? Compare some of the different things found in soil.