Looking Back in Time

The lesson allows young scientists to use lasers and mirrors to study reflected light. A reading passage and homework question assess learning, while additional material introduces extension activities. 

Twelve pages of mostly multiple-choice questions comprise this comprehensive New York Regents physics exam. It covers an entire year's worth of physics curriculum and requires about three hours for completion. Review the questions to...

In this light worksheet, students read what makes light, the speed of light, and the electromagnetic spectrum. Students complete 12 matching, 8 fill in the blank, and 9 word problems.

In this light activity, learners match 12 terms related to light and the electromagnetic spectrum to their definitions, they order waves by their speed, they analyze the energy and wavelengths of the electromagnetic spectrum and they...

How effective are cells at repairing UV damage? An inquiry-based instructional activity has learners experiment with organism by exposing them to various levels of UV light and then examining their DNA after a period of time. Pupils test...

Sal compares distance of significant objects and the timeline of events in the universe on a scaled timeline across the screen.

Let there be light. The last installment of a seven-part series has pupils conduct an experiment on light attenuation through different numbers of transparency sheets. They then relate the results back to how X-rays measure bone density.

Students examine the relationship between solar activity and the Earth's geomagnetic field in producing the phenomena known as aurora borealis (Northern Lights) by reading and discussing "Earth, Wind and Fireworks." students graph data...

If you are up for constructing a wooden frame, you can do this demonstration of the interference patterns when light reflects off of layers of soapy film. Both constructive and destructive interference can be seen as evidenced by the...

Waterton-Glacier International Peace Park includes whitebark pines that are over 1,200 years old, meaning they have been there since before medieval times. The second lesson of five details how to read tree rings for climate change and...