A celestial body's distance from Earth makes studying its characteristics much more difficult. Learn how scientists use indirect measures to determine the size of stars. The interactive activity has individuals adjust the size of binary...

In this angular size worksheet, students read about how astronomers determine the size of objects in the sky by using their angular size. Students are given equations that allow scientists to convert the angular size into kilometers....

In this black hole worksheet, students solve 3 problems given the equation used to determine the speed of a falling body using its mass, the constant of gravitation and the distance it will travel.

Set the timer for five minutes (or less), and distribute this resource to your class. There's a very short reading passage followed by a set of three questions. What a great tool in prepping your class for upcoming state testing. 

In this space science worksheet, students find the words associated with the basic terms of Astronomy. The answers are located at the bottom of the page.

For this proofreading worksheet, students read a short paragraph, find 5 misspelled words and spell each correctly in boxes beneath the paragraph. Worksheet is part of the Glencoe Online site.

Site provides a brief introduction to binary stars. Additional resources for students and teachers on this topic are offered as well as related topics.

A great site to find general information on stars and their place in the universe. Click on the topics on the right margin for additional information about stars.

In this module you will learn the different types of binary stars.

Discover what neutron stars and pulsars are and view pictures of them. Includes links to additional resources and lesson plans.

"The Rossi X-ray Timing Explorer has discovered neutron stars that emit streams of X-rays pulsing over 1,000 times a second." Visit this site to read the rest of this article. Site offers additional resources as well as a Teacher's Corner.

Site recounts how X-rays were discovered as well as who discovered them. Offers graphics, links to facts on this topic, a quiz, and teacher resources.

In this interactive activity from NOVA Online, learn about a type of exploding star - a Type Ia supernova - that is so bright that astronomers can measure the distance to the galaxy in which it resides, and even learn which elements make...

Supernovae are divided into two basic physical types, including a description of supernova types and how they are classified based on the existence of hydrogen spectral lines. Definitions of key terms are provided.

In this module you will study about Novae and Supernovae and will learn about the evolution of the binary system.

At this site from the Astronomy Department of Cornell University, Kepler's three laws of planetary motion are stated. There are brief explanations of each, along with links to additional information on related subjects.

At this site from Cornell University, Kepler's three laws of planetary motion are stated. There are brief explanations of each. The laws are applied to explain the features of planetary orbits as well as the motion of binary star...

Learn what black holes are and the myths that surround them.