Space scientists use water displacement to determine the mass of a cubic centimeter mini meteorite, and then use it as a small-scale representative of an asteroid. They figure out the orbital velocity of an asteroid. Then they use a...

Students view a teacher demonstration of comet composition. In this comet science lesson, students watch as the teacher combines sand, ammonia, cola, and dry ice to simulate the composition of a comet. They answer discussion questions...

For this asteroid and comet worksheet, students read about the formula used to determine the brightness of asteroid. They apply this formula to solve 2 problems about asteroids and their brightness.

Students study orbits and ellipses and see the differences between orbits and comets.  In this investigative lesson students do an activity that shows them what objects are more like comets and fill out a worksheet. 

Students investigate the composition of a comet.  For this comet lesson, students create a thinking web and explain their knowledge of what makes a comet.

In this science worksheet, students locate and identify various vocabulary terms related to space science. There are 21 words located in the puzzle.  

Students investigate the concept of a comet. They construct a model of a comet. The design is done using the same thoughts of an engineer. Students work together to discuss the strengths and weaknesses of the comet models. If the model...

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

An introduction to comets, including information on their composition, origin, and importance.

Instructions for making a simulated comet nucleus from simple materials.

"The survivals and extinctions at the close of the Cretaceous are such as might be expected to result from intensely hot winds such as would be generated by extra large meteoritic impacts." This article suggests that this theory should...

Learning exercise for students centered around Comet Shoemaker-Levy 9.