| A | B |
|---|
| The movement of atoms and molecules | thermal energy |
| What do the temprature of hot soup and a cold table want to be? | the same temprature |
| What matters more with heat : temprature or size? | size |
| Heat flows in what direction? towards . . . | the cooler object |
| Which object will cool off faster : the cup or the pool? Why? | The cup; the cup is smaller |
| Frying an egg in a frying pann is what type of heat? | conduction |
| Hot air _____ and cold air _____. | rises; sinks |
| Camper Joe sat facing the fire. His face is ____ and his back is ____. | warm; cool |
| Energy that moves through empty space is what? | radiation |
| Explain how convection works | Air is heated and rises; cool air moves in to take the heated air's place. The cool air is heated and new cool air takes it's place. |
| Most matter does what when heated. | expands |
| Most matter does what when cooled | contracts |
| Which expands the most; a solid, a liquid, or a gas? | a gas expands the most |
| Name two examples of how we prevent expansion and contraction from damaging things . | joints in sidewalk; letting water drip from faucet. |
| Explain how water is unique. | It expands between 4 degrees celcius and 0 degree celcius. 4 degree celcius is water's most dense temperature |
| What device do you take your temperature with? | a thermometer |
| Water freezes at this temperature. | 0 degrees celisus or 32 degrees F |
| A device that measures very high temperatures. | pyrometer |
| Explain how a liquid crystal thermometer works | The crystal's color tells what temperature the object is; red is coolest , blue is warmest . |
| What is temperature? | the measure of how fast an object's particles are moving |
| What are the 3 parts of an atom | proton, neutron, and electron |
| Different substances that do not join chemically. | a mixture |
| When a substance dissolves, it breaks down into what? | molecules |
| Chemical Property describes how matter reacts to what? | other matter |
| Explain the difference between chemical and physical change. | Physical change changes how the object looks, its shape, etc. and chemical change changes what the object is . |
