Memory Game SSU - Solar System UnitOnline version VOCAB by Marvin Miller Center of our galaxy. Planets orbit the sun. Very strong gravitational pull, 98% of matter in the galaxy Moon 2nd planet from the sun. Hard rocky surface. Covered with poisonous gas. Brightest planet, Hottest planet Mars Mercury Earth Round like the planets, Orbit a planet not the sun, some planets have no moons, Some planets have lots of moons 4th planet from the sun. Hard rocky surface. Red dirt. Huge, powerful dust storms. SUN Venus Planet closest to sun. Hard Rocky surface. No atmosphere. No weather 3rd planet from the sun. 75% covered with water. Oxygen in atmosphere Saturn 7th planet from the sun. Huge ball of gas. Mainly frozen. Tilted. Spins on its side. Pluto Dwarf planet. Used to be 9th planet from sun. Comet Neptune Large chunk of rock or metal, orbits around the sun. Lumpy, not round. Tumble as they orbit. 6th planet. Lightest planet. Rings made of rocks and ice. Huge ball of gas, solid core. Asteroid 8th planet from the sun, Huge ball of gas. Almost competely frozen. Spins very slowly Large group of ice, dust, and rocks, orbit the sun, have tail made of gas Uranus 5th planet from the sun. Largest planet. Huge ball of gas. Solid core. Large red spot is a big storm Meteor Jupiter Smaller chunks of rock that have broken off a asteroid or comet. Can get pulled into a plane'ts orbit. burn up when enter Earths Atmosphere. Falling star
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