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Chemistry Vocab.
Chemistry Notes For Test
| Word/ Fact | Definition/ Fact |
|---|---|
| Chemistry | The branch of science that deals with the properties of matter. |
| Matter | Anything that has mass & takes up space |
| Mass | The amount of matter in an object or body- measured in grams |
| Weight | The amount that gravity pulls on a certain mass- measured in pounds |
| Solid | Has it's own shape, but can change |
| Fact for weight | Weight depends on mass, but mass doesn't depend on weight |
| Fact for solid | A solids atoms are packed too tight to let them move |
| Liquid | Takes the shape of it's container |
| Fact for liquid | A liquids atoms are packed loosely, but not too loosely |
| Gas | Only takes the shape of it's container if trapped |
| Fact for gas | The atoms move freely in gas |
| Volume | The amount of space an object takes up- measured in cubic centimeters or liters, meters,etc... |
| Water Displacement | A method of measuring volume of an irregularly shaped solid |
| Directions For Water Displacement | Fill a measuring cup with a set amount of water. Then, place the object in the water.Measure the difference before & after |
| Buoyancy | The weight of an object sinks until it's weight is displaced in water |
| Fact | Hollow things float |
| Fact | Buoyancy can also be in air.Like hot air balloons,Hot air moves faster than cold.If you have enough air in an object, it goes up |
| Density | A measure of how tightly packed the atoms of a substance are- measured by mass divided by volume |
| Fact | The density of water is 1 |