Lesson 1
Lesson 2
Lesson 3
Random
100
What are large bodies that revolve around the sun called?
Planets
100
What planet can support life?
Earth
100
What is Ly abbreviated for?
Light-year
100
True or false: Our sun is a star
True
200
What holds moons around their planets
Gravity
200
What is the order of the planets?
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune (Pluto)
200
What is a system of gases, dust and stars held together by gravity
Galaxy
200
What does the volume of the outer planets consist of?
gases
300
What are the two parts of a comet?
Nucleus and tail or coma
300
What is the different between the inner and outer planets
Inner: Rocky, closer to sun, smaller Outer: Gassy, farther from sun, bigger, some have rings
300
What is magnitude
brightness of a star
300
What do the colors of different stars mean?
Blue or white: Hottest, brightest main sequence stars Yellow or orange: medium main sequence stars Red: coolest, dimmest main sequence stars
400
What is an asteroid
a small rocky object that orbits the sun
400
How are Earth and Mars similar?
Both have mountains and volcanos, similar amount of land area, possibly water
400
What are the three types of galaxies
spiral, elliptical, irregular
400
What galaxy do we live in and what type is it?
Milky Way, spiral.
500
What is the difference between a meteor, meteorite, and meteoroid?
Meteor is the flash of light in the sky, meteoroid is the object in the air, meteorite is when it hits the ground
500
What are two things used to explore space?
Telescopes, satellites, space shuttles, space probes
500
How does a star form?
Nebula, becomes protostar (first stage), temperatures get hotter and it glows, now its a star, then a main sequence star
500
Why do moons orbit around planets and not the sun?
They are closer to the planets and those planets have a gravitations force also.
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