Students explore the different types of pollution. they conduct experiments using dye mixed with tap water to measure the levels of dilution. They discuss at what point the dye (pollution) would be diluted enough to be safe to drink.

Students construct a model of a well to identify how water is brought to the surface. Signs of pollution are investigated.

Note the way that plants change during the season by adopting a plant on your school campus. After your class chooses their plant, they research the plant's needs, how it differs from other plants, find ways to support their plant's...

Not only is this lesson about story retell, main events, and making predictions, it's also about plants. Youngsters will read the tale, The Tiny Seed as they explore the plant life cycle and early literacy skills. The lesson is very...

How is energy transferred within an ecosystem? What would happen to a food web if one of the organisms was removed? Elementary or middle school ecologists examine these questions and more in a comprehensive 5E learning cycle lesson....

Students listen to story, The Lorax, by Dr. Seuss, discuss air quality and how people affect the earth and its atmospheric cycles, and give oral reports on what they have learned.

The activity really comes to life within its intended unit on starting a rain garden. Working in groups, participants research native plants and coordinate them with the conditions in the designated garden area. Give the class access to...

The fascinating video "Changing Planet: Fresh Water in the Arctic," introduces your oceanographers to the world's gyres. They learn that melting sea ice is making the gyres larger, and that the changes could, in turn, contribute even...

Fixin' to add a great resource to your plans? Scholars perform an experiment to investigate nitrogen-fixing bacteria from plant roots. Along the way, they learn about the concepts of symbiosis and mutualism.

Purifying air and water, providing soil in which to grow crops, and moving water through its natural cycle are all services an ecosystem provides that benefit humans. Lesson four in a series lets learners explore and discuss the value of...

The thaw depth of tundra creates a positive feedback loop with both global warming and the carbon cycle. Scholars sort photos and develop a hypothesis for ground cover and permafrost depth. Then they review the data and measurements...

Use this attractive PowerPoint to introduce all the hormones and their functions to your students. As students view each slide, they should be able to see the relevance of many of the chemicals and their interaction with the human body....

The many images and labeled diagrams in this PowerPoint will help learners understand different areas of the endocrine system. The slide show starts with information about the absorption of lipid and protein based hormones, and then...

Students explain that ants are an important element of nature's balance. Ants eat many insects and are food to other animals. They watch a video and conduct hands-on activities that give them an excellent overview of the ants role in...

What's the best way to record temperature over a long period of time? Scholars learn about collection of weather and temperature data by building thermistors in the fourth installment of the 10-part Discover Your Changing World series....

This project provides students the opportunity to investigate parasites as a possible cause of the observed frog deformities. It asks students to view web-based evidence and interpret whether it supports the parasite hypothesis. Students...

Young scholars investigate Earth and its resources. In this Earth, space, and nature lesson plan, students collaborate to design presentations on the Earth, its cycles, and how humans have impacted the planet. Images, diagrams, and...

Create a creature using some of the characteristics of a real animal. Second graders will read a book from the "Froggy," series by Johnathan London to learn about the characteristics of frogs. After discussing and recording various...

This short presentation provides a convenient introduction to the nitrogen group in the periodic table of elements. A graphic displays where they are placed in the periodic table. The nitrogen cycle is mentioned and ammonia is explained....

Budding scientists work collaboratively to reenact energy flow in a food chain. Scholars take on roles such as producer and consumer and perform tasks that symbolize energy flow in order to provide evidence of how much energy passes...

Studetns view a terrarium with water droplets on the wals. They discuss the ways the water could have got onto the wall of the terrarium. Students design an experiment to duplicate the process. They describe the patterns form their data...

Students understand that all living things have a life cycle that includes being born, developing into an adult, reproducing, and eventually dying.

Students experience the effects of pollution and erosion on a model of a watershed and explore ways to change the outcome.

Young scholars explain the processes involved in the rock cycle. In this earth science lesson, students identify the different kinds of rocks. They complete a worksheet during the activity.