This models uses a household sponge to demonstrate several characteristics of the relations of soil and water.

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Organization
Soil Science Society of America
Discipline
Earth and Space Sciences
Grade Level
3-5
6-8
Lesson Area
Soil Physics
Lesson Type
Activity
Lesson Keywords
Infiltration
Saturation
Percolation
Drainage
Runoff
Capacity
Water Movement
Soil Physics

Next Generation Science Standards

Grade Discipline Core Idea
3-5 ESS2.C: The roles of water in Earth's surface processes

Most of the Earth's water is in the ocean and much of the Earth's fresh water is in glaciers or underground.
6-8 ESS2.C: The roles of water in Earth's surface processes

Water cycles among land, ocean, and atmosphere, and is propelled by sunlight and gravity. Density variations of sea water drive interconnected ocean currents.  Water movement causes weathering and erosion, changing landscape features.