1. Plants need inputs to grow
2. Growing plants without soil
Week 3 - The environment has an effect on all living things
Week 4 - Chemical and Physical reactions
Week 5 - Introduction to Light
6. Energy
7. Growing Peas
8. Heat and Energy
9. Corn

Get started with testing

The steps to testing the soil media are as follows:

You will record the results of each step in your table as you go along.
Start by recording your hypothesis for each type of media.

Test 1
  • Collect 1 teaspoon of soil or media and place it in your test tube.
  • Add 1 pipette full of white vinegar into the soil or media.
    • Observe what happened to the soil media.
    • Record what happened.
    • Did the soil media fizz or bubble after you added vinegar?
  • If the soil media fizzed or bubbled, you have an alkaline or basic soil, with a pH between 7 and 8.
    • If it doesn’t fizz or bubble after doing the vinegar test it is not basic and you need to move on to the next test.
    • If you determined that this media type is basic you can move on to the next type in your table.
Test 2
  • Empty the test tube and clean it. Put more of the same soil or media back in the test tube.
  • Add distilled water to the test tube until the soil is muddy.
  • Add 1 teaspoon of baking soda.
    • Observe what happened to the soil media.
    • Record what happened.
    • Did the soil media fizz or bubble after you added baking soda?
  • If it fizzed or bubbled you have acidic soil, most likely with a pH between 5 and 6.
  • If your soil did not react at all in either test it is neutral with a pH of 7.

Make sure you complete the test for each type of media and record your results.