Vocabulary Chart

Terrestrial Jovian Gas Giants Earth-like "things that are similar to Jove” Mostly gas-like surface with small core Jupiter, Saturn, Uranus, and Neptune Earth-like Of or relating to the Earth Solid surface Mercury, Venus, Earth and Mars Jovian – “Jupiter” chief god in roman mythology

The Solar System is the system of the Sun and the objects that orbit it bound together by gravity Galaxy is a massive group of stars, gas and dust, solar systems, and dark matter bound together by gravity A universe is a large and unimaginable space of dust, gas, stars, clouds, galaxies, and life Interesting facts…. There are other solar systems out there ----- large distances btwn planets -----distance between Earth to Jupiter 640 days We are in the milky way galaxy, hundreds of billions of stars in a galaxy Universe is made of 100 billion galaxies Dark matter --- something that has a mass or takes up space that is undetectable using astronomical equiptment ?

Everything near the Sun will be attracted to it because of its mass Background Knowledge Everything near the Sun will be attracted to it because of its mass Everything on Earth will be attracted to it because of its mass

Gravity (law of gravitation) Gravity = Pulling force All objects have a gravity Law of gravitation  Law of Gravitation https://www.youtube.com/watch?time_continue=88&v=Jk5E-CrE1zg

CHECK FOR UNDERSTANDING 63 CHECK FOR UNDERSTANDING Did you know? Jupiter, the largest planet in our SS, has the most moons! Guess how many? What will happen to the force of gravity if: Increase Red mass Increase Blue mass Increase distance of Red mass Increase distance of Blue mass Decrease Red mass & Blue mass Decrease distance of Red mass & Blue mass https://phet.colorado.edu/sims/html/gravity-force-lab/latest/gravity-force-lab_en.html http://www.go-astronomy.com/planets/planet-moons.htm

Mass Force How much “Matter” an object is made of A push or a pull

Measuring objects in Space Objects in space look close but they are REALLY, REALLY, REALLYYYYYYY far away Distance from the Earth to the Moon is 384399861 meters and travel would take 3 days! Travel from the Earth to the Sun = 156 days

Astronomical Units (AU) Light Year (LY) Measures the distance between planets Used when other measurements get to large (distance between planets) Based off distance from the Sun to the Earth Measures distances farther than planets in our solar system (to distant stars) Based off distance Light travels in a year Nothing is faster than the speed of light 63241 AU = 1 LY

Parsec Measures extremely distant bodies in space distances (like between galaxies) about 3 light years = 1 parsec