Vocabulary
These rocky objects orbit the sun in a variety of sizes
What are asteroids?
This was once considered a planet but is now considered a dwarf planet
What is Pluto?
The moon doesn't actually give off any light of its own, but instead does this
What is reflects sunlight?
The year the US and other nations began building the ISS
What is 1998?
This large system of stars and their solar systems also includes gas and dust
What is a galaxy?
These natural or artificial objects orbit larger astronomical bodies
What is a satellite?
This third planet from the sun is the only one that contains water in all 3 phases - a solid, liquid and gas
What is Earth?
During this type of moon, the moon is between the earth and sun and can't be seen
What is a new moon?
The amount of time it takes the ISS to orbit the earth
What is 92 minutes?
These spherical objects orbit the sun but are too small to move objects from their orbit
What is a dwarf planet?
This spherical object orbits the sun and has a big enough mass that it has removed objects from its orbit
What is a planet?
This eighth planet is furthest from the sun
What is Neptune?
During this type of moon, the entire visible side is lit up
What is a full moon?
Color, temperature, size, composition and brightness are all characteristics used to classify these
What are stars?
This moving interstellar cloud of gas and dust is huge
What is a nebula?
This event occurs when one celestial body's shadow is cast on the surface of another
What is an eclipse?
Jupiter, Saturn, Uranus and Neptune are all examples of this type of planet
What is a gas giant?
During this type of eclipse, the moon passes between the sun and earth and casts a shadow on earth
What is a solar eclipse?
This causes our day and night
What is earth's rotation?
This is one of two days each year when the sun's most direct rays reach the farthest north or farthest south
What is a solstice?
This is the point in earth's orbit when the sun crosses the plane of the equator
What is an equinox?
This planet is the one closest to the sun
What is Mercury?
During this type of eclipse, Earth passes between the sun and moon and Earth casts a shadow on the moon
What is lunar eclipse?
Along with the earth's tilt, this causes earth to have seasons
What is earth's revolution?
This closed curve has a sum between any 2 fixed objects that is the same
What is an ellipse?