As an example of nature's water filtering system, young ecologists conduct an experiment in the lab. They construct a funnel out of a plastic bottle, fill it with specified layers of materials that simulate layers of soil, then run muddy...

Young scholars explore magnification. For this science skills observation lesson, students make a hand lens using a wire loop and a small amount of water.

High schoolers determine the physical and chemical factors that affect plant growth. In this biology lesson, students explain the role of hormones in plants. They investigate how competition with other plants affect their growth.

Learners conduct a series of exploration activity on how vaccines and antibodies work. In this biology instructional activity, students test how antigens and antibodies work in the body. They discuss the benefits of vaccines in promoting...

High schoolers discuss the importance of plankton in the ocean ecosystem. In this biology lesson plan, students identify the different types plankton by observing them under the microscope. They explain how plankton population affect...