Measuring Absolute Time
In this absolute time worksheet, students answer eleven questions about ways to measure the age of fossils. They define half-life, answer questions about radioactive dating, tree rings and varves.
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How Light Pollution Affects the Stars: Magnitude Readers
Did you know light can decrease visibility? Light pollution absolutely makes it more difficult to see stars. Scholars build a simple magnitude reader to determine the magnitude of stars. They use these data to estimate the impact of...
5th - 12th Science CCSS: Adaptable
New Review World's Roundest Object!
The definition of a kilogram is debatable. An informative video (as part of a larger playlist) shares the problem with the current definition of a kilogram. It explains why the concept became a challenge to explain as well as multiple...
12 mins 9th - 12th Science CCSS: Adaptable