Classify the different types of numbers we use, and learn how numbers and operations relate to one another. Start with counting numbers and then add integers, rationals, algebraic, and, finally, real numbers to the line.
Run this model of the carbon cycle to see how carbon circulates through the atmosphere, biosphere, oceans and the earth's crust. Explore ways that human input might change global outcomes in the future.
Play an animation that incorporates most types of energy transfers and conversions into a chain reaction. Then rerun the animation and answer questions to test your understanding of how energy can travel and change.
Because the Constitution creates separate institutions that must share power, there will always be disputes over the basic principles. Check out some of the hot issues (term limits, electoral college, judicial review) that are in dispute even to this day.
Explore the chemistry and physiology of running by choosing an avatar and running a series of timed races. Set a running goal to successfully complete a full marathon. Then perform an energy calculation to see how many kilocalories were burned during the race.
Learn more about key chemistry-related people and events from prehistoric times to the present. The timeline targets major breakthroughs in the development of chemical science, including the discovery of key elements, as well as the birth and death dates of important contributors chemistry history.
Decide whether to agree/disagree with the change of policy that requires admission officials to meet enrollment quotas based on race. Then explore other methods to promote racial diversity at schools and universities.
In this activity, read a short text several times with a different purpose for each reading, making annotations that reflect important ideas, questions, confusions, key vocabulary, and overall understandings.