Pebbles, Sand and Silt
Students observe structures and properties of earth materials (rocks, soil, and water), weathering and erosion of Earth’s surface, natural sources of water, and how to represent the shapes and kinds of land and bodies of water on Earth. Students observe, describe, analyze, and sort solid earth materials and learn how the properties of the materials are suited to different purposes. Students explore how wind and water change the shape of the land and compare ways to slow the process of erosion.
Curriculum Map
Unit: Pebbles, Sand and Silt
State Standards
2-ESS2-1. Investigate and compare the effectiveness of multiple solutions designed to slow or prevent wind or water from changing the shape of the land
2-ESS2-2. Map the shapes and types of landforms and bodies of water in an area.
2-ESS2-3. Use examples obtained from informational sources to explain that water is found in the ocean, rivers and streams, lakes and ponds, and may be solid or liquid.
2-ESS2-4(MA). Observe how blowing wind and flowing water can move Earth materials from one place to another and change the shape of a landform.
Essential Questions
How do scientists learn about pebbles, sand, silt and other earth materials?
Why is it important to learn about earth materials?
How do people describe and classify Earth’s materials?
Where is water found in our community?
How can we reduce soil erosion?
Students will...
Ask questions and defining problems
Developing and use models
Plan and carrying out investigations
Analyze and interpret data
Construct explanations and design solutions
Engage in an argument from evidence
Obtain, evaluate, and communicate information