Alex is an actor in a play. Help him figure out which items use electricity so he can make sure everything is ready for the play.
Dionysus is a Greek God. and a theater director. Help him get ready for the play and learn about land, water, and air. After completing this lesson, students should be able to identify the different materials Earth is made up from (land, water, air) and in what form you find each on Earth.
Nanook wants to learn to cook. In order to cook, she first needs to learn how things can change when they are heated or cooled.
Scientists study ice sheets because they influence weather and climate, playing a role in atmospheric and ocean circulation. Ice sheets can also have huge impacts on global sea levels because they store so much water. Explore this four-part media gallery of visualizations, data, animation, and video from NASA showing changes in the Greenland Ice Sheet. Resources include background information, a student handout, and teaching tips. Closed caption available.
Explanation of the ionization energy required for different groups on the Periodic Table. [10:18]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
An explanation of groups on the Periodic Table and their characteristics. [8:19]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
This collection of six images captures the magnificence of human development -- the transformation from baby to woman.
Tells the story of Love Canal, NY and the contamination that was happening there and what has been done about it recently.
Internet giant says renewable energy is increasingly lowest cost option and it will not rule out investing in nuclear power.
Introduces South African Alexander Toit as naming Gondwanaland and Laurasia.
In this lesson, students learn how to identify and explain an electromagnet, describe the relationship between electricity and magnetism, and compare an electromagnet to a bar magnet.
This video focuses on what causes the extinction of the dinosaurs. Learn about Luis Alvarez's research that led to the discovery that an asteroid caused the mass extinction. Video includes embedded quizzes that check from students' understanding of the concepts explored in the video. [33:43]
This interactive module explores the environmental factors and species involved in five major mass extinctions.
In this lesson, students deepen their knowledge of physical and geographic features of the Great Lakes by exploring one of the five Great Lakes in depth with a study group and creating a “for sale sign” poster to present to the class for one of the Great Lakes.
Definition of half-life and graphing the decay of phosphorus-32. Calculating how much phosphorus-32 remains after 57.2 days. [6:42]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Carbon dating is a real-life example of a first-order reaction. This video explains half-life in the context of radioactive decay. [12:28]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
A university-level course in basic observational procedures in astronomy. Covers how to use a telescope, and includes lecture notes.
Discusses conditions needed for the Hardy-Weinberg Law to hold true and demonstrates calculations involving allelic frequencies to illustrate this principle.
This site from Palomar College describes the conditions needed for theHardy-Weinberg Principle to hold true.Completes sample calculations involvingthis principle.
This public health resource provides information on carbohydrates. Very in-depth, discussing what carbohydrates are, how they work, and popular diets related to carbohydrates.