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Does Soil Contain Water?

Does Soil Contain Water? Activity

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See more activities in: Kindergarten, Simple Experiments

For kindergarten “concrete” thinkers, water is water, and soil is soil. But then there’s the important scientific principle that plants must be watered, and the water must stay somewhere! Here’s a kindergarten experiment that uses coffee cans, dirt, and sand to explore the question of whether soil and sand “contain” water. This activity helps kids observe and hypothesize. As a bonus, it ties into common kindergarten curriculum on the water cycle.

What You Need:

  • 3 Coffee cans
  • Regular moist dirt from a garden
  • Dry sand from a sandbox (collected at the same time as the dirt, under similar conditions)
  • Black construction paper
  • Tape
  • Sunny window or top of a warm radiator

What You Do:

  1. Make a guess (hypothesis) with your kindergartener. Ask if she thinks that dirt and sand contain water. Then ask how she can tell, and which one might hold more water.
  2. Then, line up your coffee cans and leave the first one dry and empty.
  3. Place black construction paper across the top of it, and tape it down at the edges.
  4. Now fill the next can half full with your garden dirt, and tape construction paper across the top as you did with the first can.
  5. Finally, fill the third can half full with sand and cover with the construction paper.
  6. Put all three cans in front of a sunny window and leave them there for a couple of hours.
  7. When you come back to observe, the paper on the top of the empty can should look dry and untouched. The paper on top of the dirt should be quite drenched. The paper on top of the sand will be slightly moist.
  8. Talk like a scientist with your child: why is it important to know if soil holds water? What if we just planted in sand? Or dry air? Ask what this tells us about the importance of water in our world.
Julie Williams, MA Education, taught high school English and History for seventeen years. For the last six years, she has volunteered in elementary classrooms while working on a masters in school administration. The mother of two young sons, she has also been a leader on her local PTA.

Updated on Jul 3, 2013
Printable Workbooks from Education.com
Find a printable workbook to go along with this fun activity. See Workbooks
See more activities in: Kindergarten, Simple Experiments
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