More Science Projects and Experiments
Science projects, videos and experiments for various grades and topics.
Science Projects or Science Experiments: Grades 3 & 4
Comets and Meteors
Comets are visitors from the outer reaches of the solar system, and sometimes give a spectacular show to stargazers on earth. In deep space, a comet may look like an asteroid - just a lump of space rock - but as it heads towards the inner solar system and is heated by the sun, ice on the nucleus begin to sublimate and dust and gas are released to reveal a tail.
About 30 meteor showers can be seen from Earth throughout the year. Learn the science behind meteor showers, the dates when showers like the Geminids occur, and the origins of wishing upon a shooting star.
What's the Difference Between Comets, Asteroids, Meteoroids, Meteors & Meteorites?
Try the free Mathway calculator and
problem solver below to practice various math topics. Try the given examples, or type in your own
problem and check your answer with the step-by-step explanations.
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