Explains the differences between asteroids and comets. Presents a chart showing a size comparison between some known asteroids and comets.

Asteroid Impact is an 8-10 class long (350-450 min) earth science curricular unit where student teams are posed with the scenario that an asteroid will impact earth. They must design the location and size of underground caverns to save...

Find out about asteroids and where they come from.

This site explores what is currently known about the asteroid 253 Mathilde. Content includes an orbiting path, and composition. Links are provided throughout for additional information.

Learn about asteroids. What are they? What is their structure? Difference between asteroids and comets? The brief, to the point text makes this site most suitable for the younger researcher.

Kids learn about asteroids in the science of astronomy. Large chunks of rock and metal that orbit the Sun including the asteroid belt, Ceres, and Vesta.

Learn the difference between asteroids and comets, meteoroids and meteorites, and more!

This site contains facts about the asteroid 253 Mathilde from the National Space Science Data Center at NASA.

This comprehensive site delves into other aspects of our solar system besides the planets and the sun. Click on the topics on the right like solar winds, the heliosphere, the heliopause, asteroids, comets, and more.

This site has links to all the planets, providing an overview of the solar system. It also contains information about asteroids, meteors, comets and other features of our solar system.

Take a journey through the solar system with this interactive guide. Includes planetary history, "travel information," "tourist highlights," and video clips. Games and quizzes include a Solar System jigsaw that prompts the student to...

This survey of the planets includes all the basics, size, mass, atmosphere, length of day, and the like. It features interactive activities and learning exercises and compares all of the planets in colorful tables.

This is a biography of Carolyn Shoemaker. This account tells of her growing up with no interest in science, then discovering more comets and asteroids than any other living astronomer. Links to additional material and photographs are...

Understand that smaller parts make up the larger parts of our solar system. See that gas and dust come together to form a star, small rocks and asteroids come together to form planets, and so on. This page is a reference page that...

The team at Periodicvideos has created a TED-Ed Lesson for every element of the periodic table. For this video, we are mining the Royal Society archives for the story of palladium's discovery: a tale of money, an asteroid and stolen...

Explore space beyond Pluto in the Kuiper Belt region of our solar system. Find out about the space bodies that exist there and what our space missions have taught us about this far away region.

Great information about all echinoderms: sea stars, sea urchins & sand dollars, sea cucumber. How they move, what they eat. Nice images.

Brief article examines what meteorites are, the different types, and where they came from.

Anywhere there is matter there is chemistry, therefore chemistry is found all over the universe, not only here on Earth. In fact, scientists have even discovered organic chemistry in other galaxies.