The instruction sheet tells them to wet the paper towel with 1 tablespoon of water scatter the 10 seeds.
Students observe for three days and record their observations.
They return with their observations and bag of seeds. The teacher leads a discussion on the scientific method, variables and experimental design. Students design experiments to test. Students observe duckweed in a small container. Then, they design an experiment to change an environ- mental variable and increase the rate of growth in duckweed.