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Science vocabulary

Triple Bean balance Labatory scale with 3 bars. It is used to measure mass
Test tube A long, round, glass container used to measure and hold chemicals
Atom Elements that can be divided, but still have the same properties.
Proton Located in the nucleaus of an atom. Positivly charged
Electron Located in the nucleas of an atom and is negatively charged.
Chemical change A change in which a substace changes to a new substance that has new properties.
Physical change A change in which a substance changes to a new substance,but has the same properties.
metals Found to the left of the Stair Step line;are good conductors of heat and electricity, shiny, and solid
Non-metals Found to the right of the Stair Step line, and are poor conductors of heat, not shiny, and are solid.
Metalloids Are found touching the Stair Step line on the periodic Table; have properties of metals and non metals.
Chemical formula A way of describing the number of atoms that makes up one molecule of a compund.
Chemical equation A way of writing changes in the arrangement of atoms during a chemical reaction,using chemical symobols.
Balenced force Occur when the total of all fources on an object equals zero and the object does not move.
unbalanced forces Occur when the net force on an object does not equal zero; results in the object changeing motion
Newtons 1st law of motion An object at rest will stay at rest and an object in motion will stay in motion unless acted on by an unbalanced force.
Newtons 2nd law of motion force= mass x acceleration
Newtons 3rd law of motion For every action, there will be an equal and opposite reaction
Speed Distance traveled divided by the time needed to travel that distance
Distance Time traveled times the speed.
Time Distance traveled divided by the speed.
Speed graph Spped with a direction.
Acceleration graph A change in velocity
HR diagram A diagram that classifys stars
Main sequence star Star that has medium brightness,medium tempature, and medium size. (our sun)
White Dwarf star A young, small star that once was a red giant;hot and dim.
Red Giant star A big red star that will become a white dwarf.
Elliptical galaxy Collection of stars, large and bright, and sphered shaped.
Irregular Galaxy Collection of stars and planets, etc; has no definite shape.
Spiral Galaxy Sprial arms and shaped like a whirlpool.
Light Year The distance light traveles in earth years.
Asteroid Small, rocky bodies that revolve around the sun on an asteroid belt.
Comet A body of ice, dust, and cosmic dust that revolves around the sun.
Meteor Space depris that hits the atmosphere.
Meterite When a meteor hits the earth`s surface.
Meteoroid Particles of space debris that float in space.
Gamma Ray Type of radioactive materials. Biggest gamma generator is the universe.
X-ray Hot gases in the universe emit x-rays.
Ultraviotlet The sun and stars and other hot objects in space emit these rays.
Visible Stars emit this light
Infrared This shows the dust between stars
Microwave Are used by astromers to learn about near by galaxies.
Radio Stars and gases emit these waves.
Created by: w0205663