A twenty-question quiz covering knowledge of space. Good for test review or for checking students' general knowledge.

This site from the National Aeronautics and Space Administration asks the question, how can you hit a soccer goal on the Moon from Earth? Find an answer to this question as well as many more answered by Dr. Marc.

An overview of the difference between inner and outer planets of our solar system.

Offers an explanation of dark matter and dark energy, material that scientists cannot directly observe.

Through this experiment, students are challenged to lift a book (and other items) with just air. Requires simple household items, gallon-size, zipper-lock plastic bag, book, pencil, drinking straw, and tape.

[Free Registration/Login may be required to access all resource tools.] Discusses the motion of the Earth with its day and night cycle, the seasons, the Earth's orbit around the Sun, and its year-long cycle.

Here are a list of interesting interactive mysteries to go along with your science lessons. Students go through a short story and then try to solve the mystery. Topics include space, environmental issues, disease, and forensics. These...

This site from IPAC is a series of images of various celestial objects and regions as viewed in infrared light. Each photo is accompanied by a caption.

Try this at-home science experiment to learn that a glass of water molecules contains a whole lot of space.

Try this at-home science experiment to learn that that astronauts fly around in space because they are weightless.