Mötespunkt för pedagoger att dela naturvetenskapliga idéer
Plant and water experiment
Put some damp cotton wool in plastic bags (4 of them) and pour some Crassus seeds on top.
Place on the window. When the plants have grown a little, start the experiment.
Water the plastic bags with different types of water: one with salt water, one with sugar water, one with vinegar or lemon water and one with plain water. The one dipped in plain water is the control. You can put a frame around the plastic pocket.
You can also compare how the cress reacts to boiled water, for example, or water with dishwashing liquid mixed in.
