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Earth/Space Science

5th Grade Earth Space Science Study Guide - CA #12

QuestionAnswer
Outer planets have _____ moons than inner planets. more
The four inner planets in our solar system (densest planets): Mercury, Venus, Earth and Mars
The four outer planets in our solar system (gas giants): Jupiter, Saturn, Uranus, and Neptune
Does it take inner planets years or days to complete a revolution around the sun? Days *These planets are the four closest to the sun in our solar system.
Does it take outer planets years or days to complete a revolution around the sun? Years *These planets are the four furthest from the sun in our solar system.
Described as "gas giants" or "Jovian planets": Outer planets *Jupiter, Saturn, Uranus, and Neptune
Earth rotates on an: axis
These planets, made of rock and melted metal, are the densest planets in our solar system: Inner planets *Mercury, Venus, Earth and Mars
What direction does the sun rise in? East
What direction does the sun set in? West
This space object orbits the sun and it's tail ALWAYS points away from the sun: Comet
What divides the four inner planets from the four outer planets in space? Asteroid Belt
A solar system is made up of... several planets orbiting a star, such as the sun.
Several planets orbiting a star, such as the sun, is called what? A solar system
Inner planets (Mercury, Venus, Earth, Mars) have this type of center: Rocky
Outer planets (Jupiter, Saturn, Uranus, Neptune) are made up mostly of ______ and are the least dense planets in our solar system. gases *this is why these four planets are described as gas giants
If earth spun faster on it's axis, days would be shorter or longer than 24 hours? Shorter
We know that the sun does not move, but earth orbits around it. What makes the sun look like it is moving across the sky? Earth's rotation on it's axis.
It takes 24 hours for Earth to orbit around the sun. How many hours does it take for Earth to complete half of an orbit around the sun? 12 hours
What holds the dust, gases, and stars of a galaxy together? Gravity
There are many stars in space, such as the sun. What makes the sun so important to humans and our survival on Earth? It is close enough to Earth to provide heat energy, which we could not survive without.
Mercury, Venus, Earth and Mars have the smallest diameters. Making them ______. The smallest planets in our solar system. *These inner planets have less moons than outer planets.
Jupiter, Saturn, Uranus and Neptune have the largest diameters. Making them _____. The largest planets in our solar system. *These outer planets have more moons than inner planets.
How long does it take Earth to orbit, or complete a revolution, around the sun? 365 days
Outer planets have ______ ______ atmospheres. thick gaseous
Created by: Aerialelia
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