Yesterday we went over a little background knowledge on pH and the difference between chemical and physical changes
Today we are going to apply that knowledge in an experiment to discover whether your growing media are acidic, neutral or basic.
Your first job is to gather all your materials together.
You will need: test tube, teaspoon, pipette, baking soda, vinegar, water, soil plug, coco coir, local soil and rocks.
You will also need your journal to record your hypothesis and record your data
Once you have gathered all you materials you are ready to begin the experiment.