Solar System 1
This planet is the smallest and closest to the sun
Mercury
A planet revolves around the Sun once every _____ .
year
A mixture of gases that surrounds a planet or moon
atmosphere
Fireworks and rusting are examples of ____ change
chemical change
The amount of space an object takes up
Volume
The four outer planets are called ___ ____
gas giants
The planet with the longest year
Neptune
The frozen water part of the Earth system
Cryosphere
Cloud at ground level is called a ___.
fog
The distance from the center of a circle to any point on the circle
radius
comet
A planets path around the sun is called its __________
Orbit
Name three examples of precipitation:
rain, snow, sleet, and hail
Condensation the change of state from __ to __.
Gas to liquid
A closed shape with straight sides is called a ___.
Polygon
asteroid
An imaginary circle around the middle of the earth, halfway between the North Pole and the South Pole
molten rock beneath the Earth's surface
magma
The ability to dissolve in another substance
Solubility
When two lines cross to form right angles they are called ____ lines.
perpendicular
Name the 4 planets closest to the sun
Mercury, Venus, Earth and Mars
A shooting star is actually a ___.
Meteor
A large mass of moving ice and snow on land; largest reservoir of freshwater
Glacier
Frozen dew is called ___.
frost
Having the same size and shape
congruent