Science Lesson Kit · Student Worksheet
Two Garden Plots: Soil Evidence
New case: Garden A has dark root-rich soil above red-brown soil; Garden B has very thin dark soil and many pale rock pieces near the surface. Use the written observations, not a guess about which is older.
Grade 3
Name:
Date:
- 1.
Which garden has thicker visible topsoil, A or B? Give one clue.
- 2.
A sample includes loose leaf litter, dark mineral soil, brown subsoil and weathered rock. Which is the likely top-to-bottom order?
- Weathered rock → litter → subsoil → topsoil
- Litter → topsoil → subsoil → weathered rock
- Subsoil → litter → weathered rock → topsoil
- 3.
Draw a FOUR-part possible soil profile and label where roots are most common. Write that real soils may differ.
Draw here
- 4.
Why can color alone fail to prove that soil is good for growing plants?
- 5.
A garden loses some surface soil during heavy runoff. Explain one change a scientist might observe in the soil profile.