In this speed of a galaxy worksheet, students use a given equation for the speed of an object and they use the spectral lines for Hydrogen Alpha and Beta from the Seyfert galaxy to answer 6 questions. They determine the observed...

In this black hole worksheet, students use a given equation that relates the rate of matter falling into a black hole to the power emitted by the black hole to determine accreted mass.

In this space science activity, students use the sites listed on the Solar System and Planets page of the Kid Zone to locate the names of the people credited with each discovery. They identify and name 26 different scientists who made...

In this scientific method learning exercise, students read and discuss a 2 page article on the scientific method, match 3 founders of the scientific method with what they found or produced, answer 4 statements as true or false, list 3...