Written for Washington state students in life science, this lesson provides an opportunity to examine the residents of local freshwater habitats. You or the class collects a water sample, and learners try to examine what organisms live...

Students put bread out on a plate for a few days and put it under a microscope when it begins to mold. In this rotting food lesson plan, students discuss eating old food and what it does to your body.

How can you tell if a microorganism is helpful or detrimental to an ecosystem? Learners inspect slides or pictures of microorganisms and record their observations to...

What's in soil? Young scientists study the pH levels of soil from their school yard. They observe the land and area the soil came from to decide if location has anything to do with acidity level.

In this lesson students learn about the circulatory system and how it relates to engineering. Then in a hands-on activity they create a model of blood. Students also act out cholesterol in a blocked artery and look at blood cell in a...