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Matter Review Gr.7
7th Grade Review for Matter in Dubai
Question | Answer |
---|---|
Matter | Anything that has mass and occupies space. |
Nucleus | Center of an atom, made of protons and neutrons. |
Proton | Positively charged particle in the nucleus. |
Atomic Mass | Average mass of one atom of an element. |
Gas | Matter with no definite volume or shape. |
Solid | Matter that has a definite shape and volume. |
Chemical Change | Change that forms bonds creating new substances with diffrent properties. |
Physical Change | Change that does not involvethe formation of something new. |
Mass | Amount of matter in a object. |
Element | Substances that are the building blocks of matter. |
Atomic Symbol | One or two letter code that stands for an elements. |
Mixture | Combination of 2 or more substances that can be separated. |