A comet is made of lots of parts mixed together: ice, gases, dust, and chunks of rock. Comets that are in orbit travel from one edge of the Solar System until they reach the sun, then their path loops around the sun, and back towards outer space.
See whats happening beneath the ground as you grow plants from seeds.
Learn how cold-weather animals stay warm, even when their home is at the North or South Poles.
Bend light and make a rainbow with three easy science projects.
Learn about deserts and cacti with two simple science projects.