Vocabulary
Composed of 8 planets, asteroids, meteors, satellites, and comets "captured" in its orbits.
Solar System
The planet with "known" living organisms.
Earth
The Solar System has 9 planets.
False, it has 8. Pluto is not a planet anymore.
The center of the solar system.
Sun.
star or galaxy
galaxy
Large, natural objects that orbit, or travel around stars. Hits all 3 criteria.
Planet
The planet that is closest to the Sun.
Mercury
The sun's gravitational pull keeps Earth in the Sun's orbit.
True.
A large, irregularly shaped, rocky object in space that orbits our Sun.
Asteroid.
Mercury or Saturn
Saturn
The continual rise and fall of water in seas and ocean.
Tides
The biggest Planet in the Solar System.
Jupiter
Objects that move closer decrease the force of gravity between objects.
False, objects that move closer increase the force of gravity between objects.
An icy object with a nucleus of ice and dust that orbits the sun on an elongated path.
Comet.
Jupiter or Saturn
Jupiter
Is a huge collection of gas, dust, and billions of stars and their solar systems. Held together by gravity.
Galaxy
Earth in the center of the Solar System.
Geocentric
The moon has the MOST gravity.
False, the sun has the most gravity, it has enough gravitational pull to have 8 planets and other space stuff orbit it.
A small body of matter from outer space (asteroid) that enters the earth's atmosphere appearing as a streak of light, a “shooting star”.
Meteor.
Venus or Earth
Earth
A regular, repeating path that an object in space takes around another one.
Orbit
Sun in the center of the Solar System.
Heliocentric
The orbits of planets around the sun are ellipses.
True.
A celestial body that makes an orbit around a planet, including, dwarf planets and minor planets.
Moon.
Uranus or Neptune
Uranus