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Science Vocab. 4

Science Vocab.100 Words Part 4

volume the amount of space that an object occupies
tides the periodic rise and fall of the sea level under the gravitational pull of the moon
third-quarter the phase of the moon when it is three-quarters of its way through its orbit and se see half of the moon
suspension a mixture in which fine particles are suspended in a fluid where they are supported by buoyancy
satellite anything in space that travels around a planet or a star
plasma a state of matter made up of electrically charged particles
physical change a change from one state (solid, liquid, or gas) to another without a change in chemical composition
new moon a phase of the moon in which none of the side facing earth is illuminated by the son
meteor a chunk of matter from outer space that enters the earth's and often forms a streak of light as it burns
metal a substance such as bronze, iron, or copper, that easily conducts heat and can be melted and formed into a shape
melting point the temperature at which a given substance will change from a solid into a liquid
mass the quality of matter something contains
full moon the moon phase in which all of the moon's surface that faces earth is lit up
element a substance made up of only one kind of atom
first quarter when half of the moon's lit side is visible, the moon is one=quarter of the way through its orbit
eclipse occurs when one celestial body passes through the shadow of another celestial body
density the amount of matter in a given space
compound substance made up of two or more elements chemically joined together into a molecule
comet a ball of dust, ice, and gases that travels around thesun. It is much smaller than a planet.
colloid a mixture with small undissolved particles
chemical property a characteristic of matter tat is obtained by changing the state of matter
atomic number the number equal to the number of protons in the nucleus of an atom
asteroid a chunk of rock and metal that orbits the sun