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chapter 3 science
Question | Answer |
---|---|
metels | is an element that is solid and conducts heat and electricity vary well |
atoms | is a living thing in humans and animals bodies there is about 7000000000000000000000000000 of these atoms in our body |
elements | is a thing made of space earth and time elements are not made from man kind |
matter | matter is anything that can take up space such as fire, ice, water |
atomic arrangements | this is when atoms connect tech other and can make graphite or lead turn into diamonds |
non metals & menimeatlese | non metals do not conduct heat very well or electricity |
compounds | compounds is when one thing combines with another thing |
protons | A proton is a subatomic particle found in the nucleus of every atom. |
electrons | Electrons are the smallest of the particles that make up an atom, and they carry a negative charge. |
neutrons | with no net electric charge and a mass slightly larger than that of a proton |
solid | Has a definite volume or shape. Particles are very close together, and don’t move past each other. Keeps its shape. |
liquid | Has a definite volume but not shape. Particles can move past each other. Takes shape of container |
gas | No definite volume or shape. Particles spread out evenly and take shape of container. Can be squeezed into a smaller volume |
plasma | Like a gas, but conducts electricity like a metal. Occurs with high temps or electric charge |
melting point | Solid to liquid or liquid to solid. Same temperature as freezing point. |
evaporation | When liquids become a gas |
CONDENSATION | When gas becomes a liquid. Gas particles touch a cold surface and the temperature drops. |
BOILING POINT | The temperature at which evaporation occurs |