Flashcards in Space Deck (39):
Name the planets in order.
What type of star is the sun?
Medium yellow star
What pulls the earth to the sun?
How long does it take the earth revolve around the sun?
365 and 1/4 days
How long does it take the earth to rotate one time on it's own axis?
What angle is earth titled?
What season is it when the our hemisphere is titled towards the sun?
Do we get direct or indirect sunlight in the winter?
What is the longest day of the year called? And how long is it?
Summer Solstice and it is 15 hours.
What is the shortest day of the year called? And how long is it?
Winter Solstice and it is 9 hours.
What is the earth's atmosphere made of?
Mostly nitrogen and oxygen
What all does the atmosphere do? (4 things)
Gives us oxygen to breathe
Protects us from falling meteors
Protects us from harmful radiation from the sun
Keeps temperature not too hot or too cold
What are the four inner planets?
What are the characteristics of the inner planets?
They are small and rocky
Very hot and dry (except earth because of the atmosphere)
Do inner planets have moons and rings?
Little to no moons and no rings
What are the four outer planets?
What are the characteristics of the outer planets?
Very large and made of gases
Do outer planets have moons and rings?
They have both
What are the rings made out of?
Ice and rocks
Are the outer planets close together?
Are the outer planets hot or cold?
What is an asteroid?
Rock smaller than a planet that orbits the sun
Where is a huge belt of asteroids?
Between Mars and Jupiter
What is a meteor?
Flying rock, piece of dust that crashes towards the earth
What is a shooting star?
Meteor that burns up in earth's atmosphere
What is meteor that hits earth called?
What is a comet?
Huge ball of rock and ice that circle the sun
Why do comets have tails?
Because the sun's light reflects of them
What is the sun made of?
Burning hot hydrogen and helium
How does the sun release light and heat?
It is a nuclear powered explosion factory.
Why does the sun look so big?
Closer to earth
What are blue stars?
They are the hottest stars.
Which stars are the coolest?
What is called when a star explodes?
A super nova
What is it called when a star collapses?
What is included in our solar system?
Sun and everything that orbits around it (planets, dwarf planets, asteroids, comets, space junk)
What is a galaxy?
Whole bunch of stars that orbit around a black hole
What is our galaxy called?
The Milky Way