After finishing the unit on physical science and gravity, Jonathan started learning about topics in life science. We defined life science as a branch of science that deals with living organisms and life processes. Today, Jonathan learned that all plants and animals, including humans, are alike in some ways and different in others. We discussed how all plants and animals, including humans, have internal parts and external structures that function to keep them alive and help them grow and reproduce. We finished the lesson watching a video on how to identify living and non-living things.