- particle size
- ability to contain water
- different soils (sandy soil, fertile soil, silt, clay soil, etc.)
- hand lens
- plastic cups (2 sizes)
- small containers
- measuring cup
Activity 1 (Color)
- Place different soils in containers.
- Have students use a hand lens to observe.
|sand and potting soil|
Activity 2 (Texture and Particle Size)
Have students feel the soil and write down their observations.
- Does the soil feel rough, smooth, etc.?
- Are the particles large, small, very small, etc.?
Activity 3 (Ability to Contain Water)
- The teacher should make a few holes in the bottoms of the smaller cups.
- Put equal amounts of each soil being tested into separate cups that have a few holes in the bottom.
- Position the soil cups over larger cups for collecting water.
- Pour an equal amount of water into each cup.
- Observe the water as it flows through the soil and collects in the large cups. Write down your observations. Does the water flow quickly or slowly?
- After a set amount of time (15 minutes) measure the amount of water that collected in each cup.
- Record all data.
- Which of the soils do students think would be the best for planting? Why?