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Grades 9-12

bighorn sheep

Curriculum Materials

Bighorn Sheep

Major highways that connect Los Angeles and Las Vegas run through major habitats of bighorn sheep. These highways allow travel between Los Angeles and Las Vegas in just four hours, but what do they mean for the sheep?

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Educator Guide, Video

Scientist Profile: Dr. Clinton Epps

Video profile of Dr. Clinton Epps, who studies bighorn sheep populations.  Includes discussion questions about scientific practice and how scientists use DNA to study populations.

Polluted Water Keep Out

Curriculum Materials

Winter Roads

In winter, salt is regularly applied to melt ice on roads in the Northeast. But road salt runoff drains into streams and drinking water. Scientists have been testing freshwater in three regions of the Northeast for thirty years. The salt buildup has made some urban, suburban, and rural streams 25 percent as salty as seawater.

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Article

Light: Its Secrets Revealed

Did you know that when you look at a star, your eyes are capturing light that traveled all the way from the star to your eye? Learn more about how light carries information from distant objects.

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Curriculum Materials

Building a Spectroscope

White light is a mixture of all colors of visible light, but it doesn't always include every color of the rainbow. Build a spectroscope, and view the spectral fingerprints of different light sources.

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Curriculum Materials

Telescopes: Super Views from Space

It probably comes as no surprise that telescopes do a better job of collecting light and observing outer space than your eyes. But do you know why? (Hint: the answer is NOT magnification!)

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Classroom Activity, Hands-on Activity

Evolution

Natural selection plays a large role in the evolution of a species. The following activity demonstrates this concept.

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