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5 Sc ch 17
5 Chapter 17 Earth in Space
| Question | Answer |
|---|---|
| Planets travel in orbits around the ______? | sun |
| One whole spin of an object on its axis is called ______? | rotation |
| When one part of Earth faces toward the Sun, it is ______? | daytime |
| The amount of light energy an area receives causes its climate and _____? | seasons |
| the sun, its nine planets, moons, asteroids, and comets | solar system |
| one full orbit around the sun | revolution |
| an imaginary center line | axis |
| one whole spin of an object on its axis | rotation |
| Earth's elliptical orbit lasts how many days? | 365 |
| The Earth's tilt causes the earth to have ______? | seasons |
| Light from the Sun transfers energy to ______? | earth |
| What is the force that keeps all the planet in their orbits? | gravity |
| Planets closest to the sun travel the (fastest or slowest) in their orbits? | fastest |
| Which is the largest planet in our solar system? | Jupiter |
| Do space probes have astronauts aboard them? | no |
| a gas giant; the largest planet | Jupiter |
| a deep blue gas planet that gives off more energy than it receives from the sun | Neptune |
| a rocky planet covered by red, dusty soil | Mars |
| a planet with a thick layer of hot clouds covering a rocky surface | Venus |
| the smallest & coldest planet | pluto |
| the least dense of all the planets | Saturn |
| the planet that is one Astronomical Unit from the sun | Earth |
| the blue-green gas giant with an axis tipped farther than any other planet | Uranus |
| Comets are (smaller or larger) than dwarf planets? | smaller |
| Asteroids can be hundreds of kilometers wide or as small as a pebble. (true or false) | true |
| Shooting stars are actually _____? | meteors |
| Most meteors do what before they hit Earth's surface? | burn up |
| a rocky mass up to several hundred kilometers wide that revolves around the sun is called _____? | asteroid |
| Planets travel in orbits around the ______? | sun |
| One whole spin of an object on its axis is called ______? | rotation |
| When one part of Earth faces toward the Sun, it is ______? | daytime |
| The amount of light energy an area receives causes its climate and _____? | seasons |
| the sun, its nine planets, moons, asteroids, and comets | solar system |
| one full orbit around the sun | revolution |
| an imaginary center line | axis |
| one whole spin of an object on its axis | rotation |
| Earth's elliptical orbit lasts how many days? | 365 |
| The Earth's tilt causes the earth to have ______? | seasons |
| Light from the Sun transfers energy to ______? | earth |
| What is the force that keeps all the planet in their orbits? | gravity |
| Planets closest to the sun travel the (fastest or slowest) in their orbits? | fastest |
| Which is the largest planet in our solar system? | Jupiter |
| Do space probes have astronauts aboard them? | no |
| a gas giant; the largest planet | Jupiter |
| a deep blue gas planet that gives off more energy than it receives from the sun | Neptune |
| a rocky planet covered by red, dusty soil | Mars |
| a planet with a thick layer of hot clouds covering a rocky surface | Venus |
| the smallest & coldest planet | pluto |
| the least dense of all the planets | Saturn |
| the planet that is one Astronomical Unit from the sun | Earth |
| the blue-green gas giant with an axis tipped farther than any other planet | Uranus |
| Comets are (smaller or larger) than dwarf planets? | smaller |
| Asteroids can be hundreds of kilometers wide or as small as a pebble. (true or false) | true |
| Shooting stars are actually _____? | meteors |
| Most meteors do what before they hit Earth's surface? | burn up |
| a rocky mass up to several hundred kilometers wide that revolves around the sun is called _____? | asteroid |
| a frozen mass of different types of ice and dust that orbits the sun is called_____? | comet |
| (five or several) comets a year may travel into the solar system and circle the sun. | several |
| Most comets are found just before (sunset or sunrise). | sunrise |
| The (coma or nucleus) and tail of a comet form when it gets close enough to the sun to melt the nucleus. | coma |
| Most asteroids orbit the Sun in a region between Mars and Jupiter called the (asteroid or meteorite) belt. | asteroid |
| (The Sun's or Jupiter's) gravity holds most asteroids in the area beyond Mars. | Jupiter's |
| Most (meteors or asteroids) burn up before they hit Earth's surface. | meteors |
| The Moon is a quarter of the Earth's size. (true or false) | true |
| The Moon's surface is smooth and flat? (true or false) | false |
| The phases of the Moon are caused the positions of the Moon & Earth (true or false) | true |
| The _____ is the main cause of the rising and falling of tides? | Moon |
| a moon, rock, or any object that orbits another object | satellite |
| the shapes of the lit side of the Moon that can be seen | Moon phases |
| the daily rise and fall of the oceans on Earth | tide |
| Which side of the moon always faces Earth? | near side |
| Gravity causes Earth's land, water, and atmosphere to bulge slightly (toward or away from) the moon? | toward |
| Does the Moon have an atmosphere of air and water like the Earth's? (yes or no) | no |
| Have some of the craters on the Moon been caused by crashed space vehicles? (yes or no) | no |
| Does the moon make it's own light? (yes or no) | no |
| What shape is the orbit of Earth around the sun? | elliptical |
| What 4 planets are the gaseous planets? | -Jupiter -Saturn -Uranus -Neptune |
| What causes the temperature at the North and South Poles to remain so cold throughout the year? | because the sun's rays never hit it |
| What is the order of planets from closest to furthest from the sun? | Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune |
| What causes the seasons? | sun's rays and tilt of axis |
| How long is Earth's rotation? | 24 hours |
| What does the Earth rotate on? | axis |
| A shooting star is really a ______? | meteorite |
| Why do craters last for millions of years on the surface of the Moon? | no oxygen, air or water |
| During which phase of the Moon is the Moon passing between the Earth and Sun? | new moon |
| Are tides (high or low) when the Moon and the Sun form an almost 90 degree angle with Earth? | low |
| Which part of a comet exists both when the comet is close to the Sun and when the comet is far away from the sun? | dust tails |
| How does Earth rotating on its axis help keep the planet at proper temperatures for life? | both day and night would have mild weather |
| What causes Mercury and Saturn to have years of different lengths? | Mercury is closest planet to sun. Saturn is the 6th planet from the sun and so rotation will be longer. |
| a rocky mass up to several hundred kilometers wide | asteroid |
| small asteroid | meteoroid |
| a piece of meteor that lands on earth and can leave craters as big as 200 meters deep and 1,200 meters wide | meteorite |
| How are asteroids, meteoroids, and meteorites related? | They are all a rock mass - some large and some small. Meteoroids are small asteroids. Meteorites are small meteoroids. |
Created by:
pkabbes