Life Science Worksheets

What is alive? What is not alive? Living things all share some common traits. They are all made up of one or more cells. All living things need energy to live. Plants perform photosynthesis, using energy from the sun to make their own food. All living things use energy from food to grow, develop, reproduce, and eventually, die. Living things respond to their environment, and can adapt and change. In more complex animals and plants, cells work together to form tissues and organs that do specific jobs. Groups of organs work together in complex body systems, which keep living things alive. This unit provides a variety of information about living things, including information about cells, DNA, heredity, and the different classifications of animals.