Question | Answer |
Triple beam balence | instrument that measures mass in an object. |
Graduated cylinder | instrument that measures volume in an object. |
Beaker | instrument that carries and mixes chemicals. |
Density | shows how tightly or loosly an items atoms are. |
Mass | how much matter is in an object |
volume | the amount of space an object takes up |
test tube | tool that carries items |
atom | microstophic figure inside an atom |
nucleus | the center of an atom |
proton | part of the atom that carries a positive charge; + |
neutron | part of the atom that carries no charge; 0 |
electron | part of the atom that carries a negative charge; - |
element | found in an atom when it is alone |
acceleration | a change in velocity |
force | a push or pull |
velocity | speed in a direction |
Newtons 1st law | an object at rest, remains at rest, unless acted by an outside force |
Newtons 2nd law | speed depends on the size and mass of an object |
Newtons 3rd law | for every action theirs an equal an opposit reaction |
HR Diagram | graph that shows the brightness, age, color, and temperature of a star |
elliptical galaxy | galaxies that are round and are really bright |
irregular galaxy | galaxies with no definite shapes |
spiral galaxy | galaxies shape like a whirlpool with two outer arms |
big bang theory | theory shows how the universe was made |
nebula | collection of gas and dust where stars are born |