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Vocabulary 43-63
| Term | Definition |
|---|---|
| Bouyancy | Able to float because of its shape |
| Density | The amount of molecules in matter that allows it to sink or float. |
| Gravity | A force that pulls all objects that have mass toward one another. |
| Physical properties | A characteristic of a substance that can be measured or observed |
| Phases of Matter/ States of Matter | Solid, Liquid, Gas |
| Solid | Has a definite shape and volume, tightly packed together. Does not flow easily and cannot be poured from one container into another. |
| Liquid | Does not have a definite shape but does have a definite volume. Changes to the shape of the container. |
| Gas | Does not have definite shape or volume, flows easily from one place to another, particles are less tightly packed and expand freely to fill any space available. |
| Boiling | When a liquid changes to a gas |
| Freezing | When a liquid changes to a solid |
| Melting | When a solid changes to a liquid |
| Mixture | A combination of two or more different types of matter that can be separated easily and keep their own physical properties. |
| Solution | A type of mixture in which one substance dissolves into another. |
| Solubility | A measure of how much a certain substance will dissolve into another substance |
| Solvent | The liquid that does the dissolving |
| Solute | The powder that gets dissolved |
| Dissolve | To form a solution with another substance. Becomes so small you can no longer see but it is still there. |
| Magnetism | A force that can attract (pull closer) or repel (push away) magnetic materials. |
| Attract | A force that causes objects to pull together |
| Repel | A force that causes objects to push back away from one another. |