Watershed

Activity

Students look at the water holding capacity of different soils and soil components by aiding in a water experiment and then making their own experiment.

Materials Needed: loamy soil plastic pots with holes in the bottom sand sandy soil 2-3 gallon jugs of water clay clay soil peat moss bark

Procedure

  1. Docent sits students on the benches facing out from the back of the pavilion.
  2. Docent explains the activity and what role the students will play in the first part: students will count from the time the Docent starts pouring the water until it runs out the bottom of the pot.
  3. After timing the different soils and getting students to make comparisons about water holding capacity, Docents put students into groups.
  4. Student groups make soil from the components available.
  5. Docent helps students test their made soils and talk about why they are good or bad for growth.

Alabama Course of Study for Science

This activity meets goals specified for grades:

  • K–#’s 1, 2, 3, 4, 5, 6, 7, 13, 14
  • 1st–#’s 1, 2, 3, 4, 5, 6, 7, 11
  • 2nd–#’s 1, 2, 3, 4, 5, 6, 7
  • 3rd–#’s 1, 2, 3, 4, 7
  • 4th–#’s 1, 2, 3, 4, 7, 28
  • 5th–#’s 1, 2, 3, 4, 7

Learning Outcomes

Students will understand the importance of the water holding capacity of soil.

Instrumental Objectives

Students will be able to:

  • identify different types of soil and the water holding capacity of the different types of soil.
  • create a soil and test its water holding capacity.