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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. |