Chemistry 1
Anything that takes up space and has mass
matter
Planet best known for its rings
Saturn
Metric unit used to measure an object's mass
gram
Hot center of the sun
core
Scientist who studies the structure of the earth
geologist
Amount of matter in one unit of volume
The morning star
Venus
The amount of matter that makes up an object
mass
Large clouds of gas and dust floating in space
nebulae
Any trembling or shaking of the earth's crust
earthquake
Substance composed of only one type of atom
element
The speediest planet
Mercury
Name given for the number of protons in an atom
atomic number
Another name for the North Star
Polaris
Magma that has reached the earth's surface
lava
A tiny group of two or more atoms bonded tightly together
molecule
Planet discovered by the Herschel's
Uranus
Formed by electrons in orbit at about the same distance from the nucleus
shell
The hottest region of the sun's atmosphere
corona
Type of rock formed by sand and mineral particles pressed together
sedimentary
Substance composed of more than one type of atom bonded together
compound
Jupiter's largest moon
Ganymede
Chemical reaction that occurs when a substance reacts rapidly with oxygen
combustion
The brightest star in the night sky
Sirius
Type of rock that has been changed by heat or pressure into a new rock
metamorphic