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Scientific Method of Growing Grass

The scientific method contains questions that scientists always ask before designing and conducting an experiment. These questions help scientists form possible correlations as to why something happens. You can use the scientific method in your daily life to solve problems, like a brown or patchy lawn. If you can't figure out why your grass is dead or dying, use the scientific method to design an experiment and figure it out.

Things You'll Need

  • Pen
  • Notebook
  • Clay pots
  • Soil
  • Grass seed
  • Water
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Instructions

    • 1

      State the problem. Observe your grass and see what the problem is. Perhaps it's brown or maybe it won't grow in certain parts of the lawn. Write down the problem.

    • 2

      Collect observations. Examine the area around the poorly growing grass. Perhaps evergreen plants grow over that part of the lawn or the grass is constantly exposed to hot sun. Observe healthy grass as well and note the differences between the conditions surrounding healthy and unhealthy parts of your lawn. Write everything down.

    • 3

      Form a hypothesis. Make an educated guess as to why your grass isn't growing. Grass under evergreens may not be able to grow in acid soil. Grass in full sun may not be able to retain enough water to grow. Bare patches in your lawn could mean poor soil.

    • 4

      Test the hypothesis with an experiment. Plant three clay pots with soil and grass. One pot should contain regular potting soil and be placed in optimum growing conditions as a control.

    • 5

      Test for an acidity problem by planting one of your other two pots with regular soil and seed and placing it in the shade to ensure it's not lack of sun. Plant the other pot with soil mixed with a few handfuls of needles.

    • 6

      Test for lack of water by planting two test pots of seed in regular potting soil. Set them both on the dry patches in your lawn. Water one regularly and rely on rainwater to water the other.

    • 7

      Test for poor soil by planting one of your test pots with rich potting soil and the other with soil from the bare patch. Set both pots on the bare patch and water them both regularly.

    • 8

      Observe your pots and plants over several weeks. Record growth of each pot, including the control pot, each week for about a month.

    • 9

      Analyze your data. In each case, if your hypothesis is correct, the pot containing the same conditions as the brown part of your lawn should be growing very poorly.

    • 10

      Draw conclusions. If your hypothesis is correct, your conclusions should contain a solution to the problem. This may mean adding alkaline compost to your grass, installing a sprinkler system or applying fertilizer to your lawn.

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Growing Grass
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