How Far...How Powerful

A gamma-ray burst might have caused the mass extinction 450 million years ago. The video introduces the concept of gamma rays and gamma-ray bursts. Then it explains what happens if they were to hit Earth and why we can't prepare for any...

Students work with a real optical spectrum of a gamma ray burst afterglow taken at the Keck Observatory. They measure the shifts of spectral lines, deduce the velocity of the astronomical object, and then use Hubble's Law to get its...

High schoolers review some basic physics concepts about light, explore redshifted spectra and Hubble's Law, and use them to find out how far away, and how powerful, gamma ray bursts truly are.

In this physics instructional activity, learners complete short answer questions about physics concepts such as electricity, space, light, and more. Students complete 20 short answer questions.

In this space worksheet, students will review different aspects of light, sound, and radio waves in space and the use of different types of telescopes. This worksheet has 17 fill in the blank statements.

In this atom worksheet, students review the structure of an atom. Students also explore radioactive elements and quarks. This worksheet has 10 fill in the blank, 6 true or false, 1 short answer, and 3 multiple choice questions.

In this electromagnetic waves worksheet, students review the different types of electromagnetic waves. Students also compare and contrast light and sound waves. This worksheet has 10 fill in the blank, 5 multiple choice, and 6 short...