In this angular size and similar triangles worksheet, students use the properties of similar triangles and the ratios of sides to solve for unknowns in given diagrams.

The earth only revolves around one thing — and it's not any of your pupils. The lesson includes two activities dealing with the distance to the sun and the moon. First, scholars create a pin hole camera and use the rules of similar...

In this nebula worksheet, students read about the Chandra X-ray Observatory that captured the given image of a pulsar and its nebula. Students solve 3 problems including using similar triangles and proportions to find the image width,...

How did ancient peoples determine the height of really tall objects? Young scientists and mathematicians explore the concept of using shadows to measure height in a hands-on experiment. Paired pupils measure shadows, then calculate the...

In this stars rise in the east worksheet, students use geometry to show how the Earth rotates from west to east and why celestial bodies appear to rise in the east and set in the west. Students draw a figure and label given points in...

In this Dig Magazine archeology quiz, students answer 12 multiple choice questions complementing the November 2010 issue. Page contains answer and additional resources link.