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May Earth Be Revolving Around the Sun?
High schoolers listen to a lecture that traces the beginning of the heliocentric theory of the solar system to an observation by the Greek astronomer Aristarchus that convinced him that the Sun was much bigger than the Earth.
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New Review Star Power! Discovering the Power of Sunlight
It takes less than 10 minutes for energy from the sun to travel 90 million miles to Earth! In the first installment in a series of four, groups measure the amount of solar radiation that reaches Earth. They then discuss how this is...
9th - 12th Science CCSS: Adaptable
How Do Earth's Orbital Variations Affect Climate?
How does Earth's orbit around the Sun affect climate? This third installment of a six-part series looks at how Earth's orbit affects the amount of insolation at locations on Earth involves different experiments used in conjunction...
7th - 12th Science
The Sun and Its Effects on Your Community
Why is the sun round? Examine this question, and others, with your pupils while teaching them how to live in a more earth-friendly environment. Pupils explore Sun composition and discuss how solar wind, sunspots, and solar energy affects...
7th - 12th Science
Sunlight Is Way Older than You Think
Light travels fast... really fast. But that doesn't mean it moves instantly from its source to whatever object it hits. After watching this video students will understand that once generated in the sun's core, light takes thousands of...
5 mins 7th - 12th Science CCSS: Adaptable
Why Do Buildings Fall in Earthquakes?
There are few natural phenomena as startling as an earthquake, and depending on the building you're in, these experiences can be downright terrifying. Follow along as this video explores the factors that determine how a building reacts...
5 mins 4th - 12th Science CCSS: Adaptable