UNIT 13 VOCABULARY - SPACE
1) Asteroid: Piece of rock or metal made up of material similar to that which formed the planets that orbit the Sun
2)Comets: Consists primarily of ice, dust, and rock whose orbit is a long narrow ellipse
3)Galilean Moons: The four largest and brightest moons of Jupiter discovered by Galileo
4)Gravity: The force of attraction that pulls objects toward each other
5)Inner Planet: Any of the rocky, terrestrial planets of Mercury, Venus, Earth, and Mars whose orbits range is within the asteroid belt
6)Outer Planet: Any of the larger, gaseous planets Jupiter, Saturn, Uranus, and Neptune whose orbits lie beyond the asteroid belt
7)Meteor: Small meteoroid that burns upon entry of Earth's atmosphere
8)Meteorite: Remains of meteoroids that strike the surface of Earth or the Moon
9)Meteoroid: A natural chunk of rock or dust existing outside Earth's atmosphere
10)Moon:A natural satellite that orbits a planet. Some planets have no moons; others have over 60 moons.
11)Orbit: The path one object takes as it revolves around another object in space
12)Planet: Any of the large celestial bodies that revolve around the Sun in the Solar System
13)Satellite: A smaller body that orbits a larger body (the Moon) or Spacecraft that orbits Earth
14)Solar System: The Sun together with the group of planets that are held by its attraction and revolve around it
15)Sun: The luminous celestial body around which Earth and other planets revolve, and receive heat and light
16)Rotation: "A 24-hour period on Earth, or, the time it takes the Earth to make one complete rotation on its axis
17)Revolution: Earth's year-long elliptical orbit around the Sun
(planets have different rotation and revolution times)
UNIT 13 VOCABULARY - SPACE
1) Asteroid: Piece of rock or metal made up of material similar to that which formed the planets that orbit the Sun
2)Comets: Consists primarily of ice, dust, and rock whose orbit is a long narrow ellipse
3)Galilean Moons: The four largest and brightest moons of Jupiter discovered by Galileo
4)Gravity: The force of attraction that pulls objects toward each other
5)Inner Planet: Any of the rocky, terrestrial planets of Mercury, Venus, Earth, and Mars whose orbits range is within the asteroid belt
6)Outer Planet: Any of the larger, gaseous planets Jupiter, Saturn, Uranus, and Neptune whose orbits lie beyond the asteroid belt
7)Meteor: Small meteoroid that burns upon entry of Earth's atmosphere
8)Meteorite: Remains of meteoroids that strike the surface of Earth or the Moon
9)Meteoroid: A natural chunk of rock or dust existing outside Earth's atmosphere
10)Moon:A natural satellite that orbits a planet. Some planets have no moons; others have over 60 moons.
11)Orbit: The path one object takes as it revolves around another object in space
12)Planet: Any of the large celestial bodies that revolve around the Sun in the Solar System
13)Satellite: A smaller body that orbits a larger body (the Moon) or Spacecraft that orbits Earth
14)Solar System: The Sun together with the group of planets that are held by its attraction and revolve around it
15)Sun: The luminous celestial body around which Earth and other planets revolve, and receive heat and light
16)Rotation: "A 24-hour period on Earth, or, the time it takes the Earth to make one complete rotation on its axis
17)Revolution: Earth's year-long elliptical orbit around the Sun
(planets have different rotation and revolution times)