The Solar System Science. The solar system is the sun and the objects that orbit around it. The sun is the center of the solar system. It is a star. Planets. A planet is a large body of rock or gas that orbits the sun. The solar system has eight planets, including Earth. Planets.
A planet is a large body of rock or gas that orbits the sun.
The solar system has eight planets, including Earth.
Earth is different from the other inner planets. It has a watery surface. It is the only planet with a lot of oxygen in its atmosphere. Earth has plant life and animal life.
Outer Planets are made mostly of frozen gases. Their surfaces are colder than the inner planets because they are farther away from the sun. Most outer planets have many moons.
Most of the smaller objects that are found in our solar system are classified as comets, asteroids, and meteors.
Meteoroids are chunks of rock or dust usually from comets or asteroids
Meteors are streaks of light produced when a meteoroid gets burned up in Earth’s atmosphere
Meteorites are meteoroids that actually hit Earth’s surface
Meteor Crater in Arizona is the best-known meteorite crater on Earth. It was formed when a meteorite hit Earth about 40,000 years ago. (p. 703)