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Matter
Structure and Transformation of Matter
Question | Answer |
---|---|
Matter | is anything that has volume and mass |
Volume | is the amount of space taken up by an object |
Mass | is the amount of matter that something is made of |
Weight | a measure of the gravitational force exerted on an object. |
Density | is the amount of matter in a given space, or the mass per unit volume |
solid | has definite shape and volume |
liquid | changes shape but not volume |
gas | change both shape and volume |
Plasma | is a state of matter. an example of this state is lightning. |
melting | solids to liquids |
freezing | liquids to solids |
vaporization | liquids to gases |
Condensation | gases to liquids |
sublimation | solids directly to gases |
atom | the smallest unit of an element that still has the properties of that element |
proton | a subatomic particle that has a positive charge |
nucleus | the center of the atom, usually containing protons and neutrons |
neutron | a subatomic particle that has the same mass as the proton but no electrical charge |
electron | a subatomic particle that orbits an atom's nucleus, has a negative electric charge, and has very little mass |