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Vocab ( science )
liquid | particles move a little faster and slide past each other |
boiling point | when water is on a hot surface and starts to get hot then starts to boil |
freezing point | when water becomes ice |
melting point | when ice becomes water |
mixture | two or more pieces of matter mixed together that can be separated |
element | pure substance where all atoms are the same |
gas | particles move so fast spread out to fill their container |
mass | the amount of matter in an object |
volume | the amount of space an object takes up |
solid | particles vibrate, but don't leave their positions |
water displacement method | the method we used to find the volume of an irregularly shaped object |
subatomic particle | particles that are smaller than the atom and make up the atom |
atomic number | the number of protons in the nucleus |
physical change | no new substances are formed |
chemical change | new substance is formed |
homogeneous | same or alike |
compound | made up of two or more kinds of matter |
proton | subatomic particle with a positive charge that are found within the nucleus at the center of the atom |
neutron | subatomic particle with a zero electric charge that are found within the nucleus at the center of the atom |
atom | smallest piece of matter |
heterogeneous | different not alike |
qualitative | your five senses |
electron | subatomic particles with negative charge that are found orbiting around the nucleus of an atom. |
solution | two or more pieces of matter that can be combined, but not easily separated |
matter | anything that has mass and takes up space |
atomic mass | the number of protons and neutrons in the nucleus |
density | how much matter an object contains in a given amount of space |
metric system | scientists always use the _____for measurements |
quantitative | hashtag numbers # |