Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

Science Chapter 8

QuestionAnswer
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
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards