Students develop an understanding of the water cycle and water catchments. This learning module is divided into introductory, developmental, and culminating activities, and also has several assessment strategies. Resource sheets...

Water water everywhere. Check out this video clip and test understanding about the cycle of water from the earth to the atmosphere.

In this science activity, learners investigate the water cycle by testing the water evaporated from leaves (transpiration). They investigate concepts of evaporation and the movement of water through the different states of the water...

In this activity students will be given three rocks representing the three main rock types in the rock cycle. They will make observations on those rocks and develop a hypothesis on how each rock formed. We will meet as a class and...

Krebs (citric acid) cycle and oxidative phosphorylation questions.

The citric acid cycle (also known as the Krebs Cycle) is actually a part of the much larger process called cellular respiration, the process where your body harvests energy from the food you eat. Yes, the citric acid cycle has the same...

Test your knowledge of the water cycle, carbon cycle, and nitrogen cycle.

Test your understanding of terms associated with the water cycle in this bingo- style game.

Test your knowledge of biogeochemical cycles.

Test your knowledge on methods of cell cycle regulation on this website!

Test your knowledge on cell cycle with this multiple choice quiz.

Test your knowledge of rocks and the rock cycle. Take this 15-question test, review your correct and incorrect answers, and print out your assessment.

[Free Registration/Login Required] Test your knowledge of the rock cycle by labeling an interactive diagram and with a short quiz.

An opportunity for understanding the biology of the female reproductive system through animated presentations and test understanding with a quiz.

Select the correct response for each given name. Players will test their knowledge of the rock cycle with this 9 question interactive.

This lesson focuses on the formation and life cycle of stars. Stars form when enough dust and gas clump together because of gravitational forces. Nuclear reactions release energy to keep the star hot. Some stars grow larger over time....

Test your knowledge of the rock cycle.

Answer these four questions about your sleep habits, then see a graphic representation of your natural circadian rhythm of alertness and sleepiness over a 24 hour period.

Try these fifteen multiple-choice review questions over concepts in cellular reproduction.

Students will investigate rocks from the North Shore of Minnesota. Students will begin by forming questions that they have about the rocks. They will use observation skills to identify attributes of the rocks. The students will use...

Web-based activity provides an opportunity for students to study cellular respiration in an up-close and personal way. By following atoms and molecules through an interactive animation, they will be able to see the changes that take...

In this physics lab activity learners investigate how mass, length and angular displacement affect the period of a simple pendulum. Students control variables, testing one variable at a time, using manual techniques (stopwatch, human...

Students use everyday building materials- sand, pea gravel, cement and water- to create and test pervious pavement. Groups are challenged to create their own pervious pavement mixes, experimenting with material ratios to evaluate how...

Has explanations, illustrations, and a Quick Time movie to download. Also contains practice test questions that are answered online.