Help
Options
Question
The _____ in the solar system orbit the Sun.
click to flip
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't know
Question
The sun and the objects that orbit it make up the ________
Remaining cards (108)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Science Chapter 8
| Question | Answer |
|---|---|
| The _____ in the solar system orbit the Sun. | Planets |
| The sun and the objects that orbit it make up the ________ | Solar system |
| The largest object in the solar system is the _____ | Sun |
| The Sun is a star made up mostly of ________ gas | hydrogen |
| _________ produces enormous amounts of energy in the Sun | nuclear fusion |
| Objects orbit the Sun because it applies __________ forces on them | Gravitational |
| Objects that orbit the Sun include planets, dwarf planets, asteroids, and ______. These objects ______ the Suns light. | Comets, reflects |
| A planet has nearly ______ shape. | spherical |
| The mass of a planet is much _____ than the mass of the nearby planets | larger |
| These are ____ planets in the solar system | eight |
| The four planets closet to the Sun are called the ______ | inner planets |
| Inner planets are made from mainly from _____ materials | rocky |
| The four planets farthest from the Sun are called the ______ planets | outer |
| Outer Planets are made mostly of ice and ____ | gases |
| Because the outer planets are much larger than the inner planets, they are sometimes called ______ | gas giants |
| A ______ is a spherical object that orbits the Sun, is not the moon or another planet, has less mass than any of the eight planets | Dwarf Planet |
| Millions of small, rocky objects called ______ orbit the Sun in a belt between Mars and Jupiter | Asteroids |
| A ____ orbits the Sun in an oval- shaped orbit and is made of dust, gas and ice | Comet |
| The ___________ is used to measure long distance in the solar system | astronomical unit |
| One astronomical unit (AU) is the average distance from Earth to the _________ | Sun |
| One way an object in the solar system moves is by orbiting, or _______ around another object | revolving |
| The amount of time it takes an object to revolve once around the Sun is its ___________ | period of revolution |
| Objects in the solar system also spin or _______ | rotate |
| The time it takes an object to rotate once is its ____________ | period of rotation |
| The shape of a planets orbit is a _______ which is a stretched out circle | ellipse |
| The sun is at one of the ______ of the ellipse, so the distance between a planet and the Sun changed as the planet moves | foci |
| A planet moves ____ when it is close to the Sun than when it is farther away | Faster |
| A dwarf planet is a sphere that orbits an _____ | Sun |
| A dwarf planet has objects similar in _____ orbital near it or crossing its orbital path | mass |
| The dwarf planets in the solar system are _______, Ceres, Eris, Make-make and Haumea. | Pluto |
| Ceres is located in the _______ belt. It is the ________ dwarf planet in the solar system | asteroid-smallest |
| Pluto has a rocky core surrounded by _____. It has ______ known moons. | ice |
| _______ is the largest dwarf planet. It is three times farther from the Sun than the dwarf planet ________ is. | Eris- Pluto |
| Make make and Haumea are dwarf planets in the _________ | Kuiper belt |
| Asteroids orbit the sun in a band between ______ and Jupiter | Mars |
| The largest asteroid is called _______ | Pallas |
| Asteroids are chunks of rock and ______ | ice |
| Comets are made up of rocks, ice and ______ | dust |
| ____________ between the particles in a comet holds it together | gravitational attractions |
| As a comet approaches the Sun, a bright ______ can develop on the comet. | tail |
| The _____ is the solid, inner part of the comet. | coma |
| As the comet approaches the Sun, it heats, changing some ice in the nucleus into a _____ | gas |
| Energy from the Sun pushes gas and dust particles away from the nucleus and makes it _____ | glow |
| ____________ comets take less than 200 years to orbit the Sun. They usually come from the _______ | short-period- Kuiper belt |
| _________ comets take more than 200 years to orbit the Sun. They come from the ________ | Long period- oort cloud |
| A small, rocky particle that moves through space is a _______ | meteoroid |
| As it passes through Earths atmosphere, friction with the air makes a meteoroid and the air around it ______ | burns |
| A streak of light in the atmosphere made by a glowing meteoroid is a ________ | meteor |
| Most meteoroids _____ up in the atmosphere | burn up |
| A meteoroid that strikes the surface of a planet or a moon is called an _________ | meteorite |
| A meteorite can form a bowl shaped depression called an ______ in the surface is strikes | impact creator |
| The outer planets are made of materials that are usually ___ of Earth. | gases |
| gravitational forces produced by the large sizes of these planets change gases into _____ | liquids |
| ____ is the largest planet in the solar system. | Jupiter |
| although it takes 12 years to revolve around the Sun, Jupiter _____ faster than any other planet. | rotates |
| Jupiter has a system of ____ around it. | rings |
| Jupiter's atmosphere contains helium but is mostly made up of ______ | hydrogen |
| Jupiter's entire structure is made up of about 80 percent hydrogen, about 20 percent ____, and small amounts of other material. | helium |
| Jupiter's rotation stretches its clouds into colorful _____ __. | swirling bands |
| the ____ ____ ___ on Jupiter is a storm that has lasted more than 300 years. | Great Red Spot |
| Jupiter has a solid core that is surrounded by ____ ____ | liquid hydrogen |
| the four largest moons of Jupiter are called _____ ____. these are Io, _____, Ganymede, and Callisto. | Galilean moons-Europa |
| like Jupiter, Saturn rotates _____ and has clouds in bands. | rapidly |
| Saturn is mostly made of ____ and helium. | hydrogen |
| Saturn has the largest ____ system in the solar system. | ring |
| Saturn has ____ bands of rings, each of which contains thousands of smaller rings. | seven |
| the rings are made mainly of ___ particles. | ice |
| most of Saturn's moons are small, but one of them, ____, is larger than the planet Mercury. | Titan |
| Uranus's atmosphere contains mostly hydrogen and helium, with small amounts of ____. | methane |
| Beneath Uranus's atmosphere is a slushy layer of water, ____, and other materials. | ammonia |
| Uranus might have a rocky ____ | core |
| the rotational axis of Uranus is ____ more than that of other planets. | tilted |
| Uranus has at least ___ moons and a small ring system. | 27 |
| the atmosphere and interior of Neptune are similar to ____. | Uranus |
| Neptune has at least ___ moons and a faint ring system. | 13 |
| the inner planets are those closest to the ___. They are also called the _____ _____ | Sun- terrestrial planets |
| the inner planets are made of ___ and metallic materials. | rock |
| the outer layers of the inner planets are in the ____ state. | solid |
| _____ is the planet closest to the Sun. | Mercury |
| Mercury has no gases close to its surface, which means it has no ____. | atmosphere |
| Because of its small mass, Mercury's ____ is not strong enough to hold gases to its surface. | gravity |
| Because Mercury has no wind to move energy from place to place, the temperature on the side of Mercury facing the Sun are always extremely ___. | hot |
| Mercury's surface is covered with impact ____, smooth plains, and high cliffs | craters |
| Mercury has a core made of ___ and nickel. Its mantle is made of oxygen and ___. | iron-silicon |
| _______ is the second planet from the Sun | Venus |
| Venus _____ more slowly than it revolves,so a day on Venus is longer than a year on Earth | rotates |
| Unlike most other planets,Venus rotates from ____ to _____ | east-west |
| Most of Venus atmosphere is made up of ________ | carbon dioxide |
| Venus is covered by a thick layer of ______ | clouds |
| The clouds on Venus are made of ____ | acid |
| Venus is the ______ planet in the solar system | hottest |
| The high temperature on Venus are caused by the _____________ | greenhouse effect |
| The greenhouse effect increases surface temperature because the ________ traps solar energy. | atmosphere |
| Most of the surface of Venus is covered by solidified _____ | lava |
| The third planet from the Sun is ______ | Earth |
| Earths atmosphere is made up of ______ and a mixture of gases. | water vapor |
| The atmosphere produces an _____________ that increases Earths average surface temperature. | greenhouse effect |
| ______ is supported on Earth because of its atmosphere, large bodies of liquid water, and moderate temperature range. | life |
| Earth has a solid inner core and an _____ outer core. | liquid |
| The ______ surround the outer core | mantle |
| Earths crust is broken into large sliding _______ | plates |
| Earths ________ is made mostly of oxygen and silicon. | crust |
| Mars is the _______ planet from the sun. | fourth |
| Mars has ____ small moons | two |
| Many probed have examined the surface of Mars; most have looked for signs of ________ | water |
| Mars atmosphere contains mostly _____________ | carbon dioxide |
| Mars surface appears to be red because its soil contains _________ | iron oxide |
| Ice caps on Mars are made up of ice and frozen ______________ | carbon dioxide |
| Features on Mars surface include craters,lava flows, canyons, and largest known __________ in the solar system | mountain |
Created by:
brookemj1