Space
What galaxy are we in?
We are in the Milky Way galaxy
T or F - A white dwarf is small
True
T or F - Asteroids are large chunks of rock and metal
True
What can we used to see objects in space? X2
We can use a telescope and a radio telescope
What is a star?
A star is a hot ball of glowing gases.
Which planet is closest to the sun?
Which planet is furthest from the sun?
Mercury is closest to the sun
Neptune is furthest from the sun
Missing words: _____ planets circle our sun and form a ______
eight plants circle our sun and form a solar system
T or F - If a star has a high magnitude number, it means that the star is very bright
False - A very bright star has a low magnitude number
Name two of Jupiter's moons
Io
Europa
Callisto
Ganymede
Space can mean two things. What are they?
Space can mean "an empty spot"
Space can mean "the area beyond earth"
What is a black hole?
A black hole is an area in space where gravity is so strong that nothing, can escape from it. They are formed from collapsed stars.
Missing word: Moons _____ planets
orbit
What are the two ways that scientists measure distances in space?
Astronomical units (AU)
light-years
What 3 ways can a very large main sequence star end their lives?
1. Supernova
2. Neutron star
3. Black hole
How are asteroids, comets, and meteoroids different?
Asteroids are large but meteoroids and comets are smaller
Comets have ice and gas, but asteroids and meteoroids do not.
Comets have a tail, but asteroids meteoroids do not.