Tuesday, June 29, 2010

Science Day- Sunlight Experiment

Science Day: This is a simple science experiment to show what happens to plants or grass when they don't get sun. You need two small potted plants, one of which you don't mind if it dies. Put one potted plant in a place where it can receive sun. But not in a place where the sun will burn it. Put other potted plant on a shelf in a dark closet where it can't be knocked over. Keep plants in both places for five days. After five days observe plants. The plant that didn't get sunlight should be wilted and dying. The other plant which did get sun should be thriving.

Alternative: Put a Frisbee or an empty clay pot over a patch of green grass. If you have gardeners do it right after they mow the lawn. Don't move Freebie for seven days. On the eighth day lift up the Frisbee or pot. Notice how the grass underneath is brown and dying. It didn't get sun. Plants need sunlight. This is why it's hard to plant grass under large shady trees laden with leaves. The sun can't reach the grass blades. Even in the forest baby trees can die if the large trees next to them have wide branches. The branches block out the sunlight.