Farming: Before food gets into your kitchen, before it even gets to the store, it's on a farm. Nowadays, farmers are agricultural scientists, working hard to keep their farms healthy. Soil is tilled and aerated, fertilized and watered. Plants need to be protected from pests, with either chemical pesticides, or biological pesticides such as bats and insects that eat other insects. Animals are milked, corralled, fed and cleaned up afterwards. Farms can take up large areas of land that were once home to wild animals. Some farms also use a lot of chemical pesticides that can cause water pollution, but farms provide food for millions of people. Farming is a tough job; thank your rumbling stomach that some people do it. Life Cycles: Wow! Did you know that all living things grow, reproduce and die in cycles? Bill explains life cycles and show us why many different living thins have similar life cycles.