What is matter?, Air around Earth, A heat tool, A freezing point, Anything that occupies space and has mass and weight, What is the boiling point?, Liquid to gas temp, Gas to liquid temp, Solid to liquid temp, Mass of matter, What is a gas?, Particles tightly packed, Particles far apart, A temperature tool, Particles loosely packed, What is a liquid?, Particles far apart, A layer of air, Particles loosely packed, Particles fixed in place, Pure water freezes when the temperature drops to 0°C., False, True, When particles of matter gain heat energy, they move slower and move closer together., False, True, Water is unique because it expands when it freezes into ice., False, True, Nitrogen makes up most (about 4/5) of the air in Earth's atmosphere., True, False, Boiling point is the temperature at which a liquid freezes into a solid., True, False, Which instrument is used to measure temperature in degrees Celsius (°C)?, Thermometer, Expand, Contract, Atmosphere, Which term means to get larger or take up more space when heated or frozen?, Contract, Thermometer, Expand, Atmosphere, What is the layer of air that surrounds the Earth?, Expand, Thermometer, Contract, Atmosphere, What happens to the energy and movement of water particles when water is heated?, Lose energy, stop, Move slower, closer, Gain energy, faster, What term describes harmful smoke, chemicals, and gases released into the atmosphere?, Condensation, Precipitation, Air pollution, Which process occurs when gas particles lose heat energy and turn into liquid water?, Evaporation, Melting, Condensation

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