Show:
Vocab. A
Vocab. B
Name the Planet
Solar System
Universe
100
Moon getting bigger
Waxing
100
One object casting a shadow on another object
Eclipse
100
The smallest planet
Mercury
100
What is the difference between a comet and asteroid?
asteroid is rock, comet is rock and ice
100
What is a light year?
the distance light travels in a year.
200
One object moving around another object
Revolution
200
One object spinning in place
Rotation
200
The planet with lots of frozen ice on its surface
Mars
200
What is the difference between a meteor and meteoroid?
meteoroid is a rock in space, meteor is in Earths atmosphere
200
What kind of gas are stars made out of?
Hydrogen
300
Orbits the sun, is nearly spherical, but shares its orbit with other large objects
Dwarf Planet
300
A huge collection of stars, gas, and dust
Galaxy
300
The coldest planet
Uranus
300
What is the difference between a planet and a dwarf planet?
dwarf planets don't have to be perfectly spherical and they haven't cleared their orbit
300
The sun is bigger than ________% of stars.
90%
400
A massive sphere that orbits a star and has no other large objects in its orbit
planet
400
Small, rocky particles that float through space
meteoroids
400
Planet with 67 moons and extremely high winds
Jupiter
400
Why do we have moon phases?
the suns light hits different parts of the moon as it revolves around earth, causing us to see different parts of the lit-up moon.
400
What does the big bang theory tell us?
the universe started from one point and is still growing and cooling.
500
Time of year where day and night are equal length
Equinox
500
Time of year when the longest day or longest night occur
solstice
500
Planet with rings made from the geysers of its moons
Saturn
500
Why do we have seasons?
Earth is tilted so the sun directly hits only a small part of the planet each season
500
How old is the sun?
5 billion years old