Botany is the scientific study of plants. According to the laws of botany, a fruit is the part of a plant that contains the seeds. A vegetable is any other part of a plant that we eat that isn't a fruit. Take a look at the produce in your refrigerator and the cans in your cupboard. Make a list of the things with seed and the things without.
Earthworms are more important than most people think.
Without earthworms we wouldn't be able to grow any food at all. By burrowing through the soil and eating and digesting their food, worms help to create, fertilize, and aerate soil that plants can use to grow. Here is a way you can watch worms do their dirty work. You need a plastic pop bottle, some soil, a piece of black construction paper, tape, and a worm or two. Cut the top off the pop bottle so that it has a nice, wide opening.