ZOOM cast members mix different amounts of baking soda and vinegar to see which combination produces the most carbon dioxide for launching a film-canister rocket. [3:23]
This simple demonstration helps students understand the concept of conduction. Site includes background information, images, and lesson plans outlining the demonstration of conduction.
Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.
By the end of this section, you will be able to do the following:
Define “energy”
Explain the difference between kinetic and potential energy
Discuss the concepts of free energy and activation energy
Describe endergonic and exergonic reactions
This article describes some common misconceptions that elementary students may have about energy, heat, and insulation. It also includes suggestions for formative assessment and teaching for conceptual change.
Learn about thermal energy, also known as heat or heat energy, and the ways in which it can move from one object to another,
Chris learns how convection currents in the air create ocean currents and marine geoscientist Angelique Rosa Marin drops by to help explain why those currents move in a circle due to the Coriolis Effect.
Students learn about the difference between temperature and thermal energy. They build a thermometer using simple materials and develop their own scale for measuring temperature. They compare their thermometer to a commercial thermometer, and get a sense for why engineers need to understand the properties of thermal energy.
How does wind and water move around the Earth? Students will be able to explain ocean and atmospheric currents move heat energy around the planet and how they impact climate patterns.
Having trouble understanding the energy transfer in heat engines? This simulation allows students to learn about the conversion of heat energy to mechanical energy in the context of heat engine.
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Do you know why the metal in the oven burns your skin but the air in the oven doesn't? This simulation will show you the relationship between heat energy and temperature.
A free CK-12 account is required to view all materials.
Students learn about solar energy and how to calculate the amount of solar energy available at a given location and time of day on Earth. The importance of determining incoming solar energy for solar devices is discussed.