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Matter and Energy
Question | Answer |
---|---|
Matter | Anything that has mass and takes up space |
Mass | Describes the amount of matter in an object |
Weight | A measure of the gravitational force on an object |
Volume | The amount of space that an object takes up |
Density | A measure of the amount of mass in a given volume |
Physical Property | A characteristic that can be observed or measured |
Chemical Property | A substance's ability to change to a new substance |
Physical change | A change that affects one or more physical properties |
Chemical Change | When substance change to entirely new substances |
Law of Conservation of Mass | In ordinary chemical and physical changes, mass is not created or destroyed |
Atom | The smallest unit of an element that maintains the properties of the element |
Pure Substance | Elements and compounds |
Element | Made up of one or more of the same atom combined |
Heterogeneous | Does not have a uniform composition |
Compound | Made up of different |
Homogeneous | |
Mixture |