Learning Resources LER 2434 manual Care Instructions, Solar System Facts, Key Vocabulary

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Turn your whiteboard into an out-of-this-world adventure with this colorful set of magnets. Go beyond decoration and use the magnets for discussion and sorting activities such as planet order, size, planet type, and more!

Care Instructions

Write on magnets with a dry or wet-erase marker for multiple uses. Test your marker on the corner of a magnet to make sure marks erase. Erase wet-erase marks with a damp cloth. Do not saturate the magnet. Too much water will damage the product. Do not bend the magnets as this will decrease their magnetism.

Solar System Facts

			Average Distance	Approximate	Approximate Volume			Number of	Planet Type	Rings
			from the Sun	Diameter	(Compared to Earth)
							Known Moons
							(as of 2009)
		Sun	n/a	1,392,000 km	About 1,300,000 times			n/a	n/a	n/a
				(864,000 miles)	greater than Earth's
	Inner Planets
		Mercury	5.79 million km	4,879 km	About 6% of Earth's	0			Rocky/Terrestrial	No
			(35 million miles)	(3,032 miles)
		Venus	108 million km	12,104 km	About 86% of Earth's	0			Rocky/Terrestrial	No
			(67 million miles)	(7,521 miles)
		Earth	149 million km	12,756 km	1.08 x 1012 km3	1			Rocky/Terrestrial	No
			(93 million miles)	(7,926 miles)	(261 billion cubic miles)
		Mars	227 million km	6,792 km		2			Rocky/Terrestrial	No
			(141 million miles)	(4,222 miles)	About 15% of Earth's
Outer Planets
		Jupiter	778 million km	142,984 km	About 1,316 times	63			Mostly Gas	Yes
			(483 million miles)	(88,846 miles)	greater than Earth's
		Saturn	1.4 trillion km	120,536 km	About 752 times	60			Mostly Gas	Yes
			(886 million miles)	(72,367 miles)	greater than Earth's
		Uranus	2.8 trillion km	51,118 km	About 67 times	27			Mostly Gas	Yes
			(1.78 trillion miles)	(31,518 miles)	greater than Earth's
		Neptune	4.5 trillion km	49,528 km	About 54 times	13			Mostly Gas	Yes
			(2.79 trillion miles)	(30,601 miles)	greater than Earth's
		Pluto	5.9 trillion km	2,390 km	Less than 1%	3			Mostly Gas & Ice	No
(Dwarf Planet)			(3.67 trillion miles)	(1,491 miles)	of Earth's

Key Vocabulary

Asteroid large space rock covered with craters; most asteroids orbit the sun in the asteroid "belt" located between Mars and Jupiter; asteroids can be as small as a few hundred meter wide to as big as 965 km

(600 miles) wide

dwarf planet object orbiting the sun that is big and heavy enough to resemble a planet, but not quite big enough to have its own clear orbit around the sun; Pluto is a dwarf planet

galaxy grouping of billions of stars held together by gravity whose shapes include spiral, elliptical, and irregular; our solar system is part of the spiral- shaped Milky Way Galaxy

gas planet sometimes called a Jovian, or giant, planet, which is made of mostly gas and lacks a clearly defined surface; includes Jupiter, Saturn, Neptune, and Uranus

inner planets the first four planets that orbit the sun before the asteroid belt; includes Mercury, Venus, Earth, and Mars

moon a natural satellite orbiting a planet

orbit elliptical path followed by planets and other space objects as they revolve around other objects of greater gravity, like the sun

outer planets the five planets that orbit the sun outside the asteroid belt; includes Jupiter, Saturn, Neptune, Uranus, and Pluto (dwarf planet)

rocky planet solid-surfaced planet that is also called a terrestrial planet; includes Mercury, Venus, Earth, and Mars

solar system consists of a star and all the objects orbiting that start along with any other material contained in the system; our solar system includes the sun, its eight planets, their moons, and all the other celestial bodies and materials that orbit the sun, including dwarf planets, comets, and asteroids

star stars are giant burning ball of hydrogen and helium gas that give off both light and heat; red and orange stars are cooler than the hotter white or blue colored stars; the sun, although large to everyone on Earth, is considered to be an average star in size (about 1,392,000 km or 864,000 miles across).

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