Khan Academy
Khan Academy: Krebs (Citric Acid) Cycle and Oxidative Phosphorylation Questions
Krebs (citric acid) cycle and oxidative phosphorylation questions.
Khan Academy
Khan Academy: Lesson Summary: Business Cycles
In this lesson summary review and remind yourself of the key terms, concepts, and graphs related to the business cycle. Topics include the four phases of the business cycle and the relationship between key macroeconomic indicators at...
Khan Academy
Khan Academy: The Citric Acid Cycle
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...
Khan Academy
Khan Academy: Biogeochemical Cycles
Test your knowledge of the water cycle, carbon cycle, and nitrogen cycle.
Wisc-Online
Wisc Online: Earth Science: Water Cycle Bingo
Test your understanding of terms associated with the water cycle in this bingo- style game.
Khan Academy
Khan Academy: Virus Structure and Reproductive Cycle Questions
These practice questions pertain to virus structure and reproductive cycle. This study resource from Khan Academy provides practice questions for the MCAT.
Khan Academy
Khan Academy: Cell Cycle Regulation
Test your knowledge on methods of cell cycle regulation on this website!
Khan Academy
Khan Academy: Cell Cycle
Test your knowledge on cell cycle with this multiple choice quiz.
Annenberg Foundation
Annenberg Learner: Rock Cycle Assessment: Test Your Skills
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.
CK-12 Foundation
Ck 12: Plix: The Rock Cycle: Rocks and Processes of the Rock Cycle
[Free Registration/Login Required] Test your knowledge of the rock cycle by labeling an interactive diagram and with a short quiz.
Sumanas
Sumanas Inc: Life: The Science of Biology: The Ovarian and Uterine Cycles
An opportunity for understanding the biology of the female reproductive system through animated presentations and test understanding with a quiz.
PurposeGames
Purpose Games: The Rock Cycle
Select the correct response for each given name. Players will test their knowledge of the rock cycle with this 9 question interactive.
BBC
Bbc: Gcse Bitesize: The Life Cycle of a Star
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....
University of Missouri
Microbes in Action: "There's Something Fishy": The Nitrogen Cycle
An opportunity for students to experience the nitrogen cycle through observing daily changes in an aquarium. Students test the level of three nitrogen compounds to understand the process of nitrification. Lesson plan gives a lab...
University of Arizona
University of Arizona: Cell Cycle and Mitosis Tutorial
Has explanations, illustrations, and a Quick Time movie to download. Also contains practice test questions that are answered online.
Other
Moorland School: Earth Science Zone: The Rock Cycle
Did you know the rock cycle is a continuous cycle that takes hundreds of millions of years? This webpage explains how sedimentary, metamorphic, and igneous rocks are formed. It also gives examples of each type of rock. Also includes a...
University of Oxford (UK)
Oxford University Museum of Modern History: Rock Cycle
Test your knowledge of the rock cycle.
Khan Academy
Khan Academy: Test Prep: Mcat: Oxidative Phosphorylation: The Major Energy Provider of the Cell
Explains oxidative phosphorylation, which is the fourth step of cellular respiration, and produces the most of the energy in cellular respiration.
BBC
Bbc: Sleep: Daily Rhythm Test
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.
McGraw Hill
Glencoe Biology: Cellular Reproduction: Chapter Test Practice
Try these fifteen multiple-choice review questions over concepts in cellular reproduction.
Science Education Resource Center at Carleton College
Serc: Investigating Minnesota Rocks: The Properties of North Shore Rocks
Young scholars 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 young scholars...
Science Buddies
Science Buddies: Where There Is Charge, There Can Be Sparks!
In this short science project you will learn how to build a capacitor using common household items. By testing different charge cycles, you will work to discover how much charge is stored in a Leyden jar capacitor.
Concord Consortium
Concord Consortium: Stem Resources: Cellular Respiration
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...
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