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Unit 1 Review
Physical Properties of Matter
| Term | Definition |
|---|---|
| matter | anything that has mass and occupies space |
| Properties | definite set of characteristics that define a substance |
| Physical Property | can be measured or observed without producing a new substance |
| Physical Change | change in a physical property |
| Chemical Change | change that produces a new substance |
| Mixtures | two or more substances physically combined |
| Homogenous Mixtures | substance is evenly dispersed throughout |
| Heterogenous Mixture | ,each substance is not uniformly dispersed and easily separated |
| Pure Substance | matter that contains one type of atom or molecule, an element or compound |
| Elements | a substance that is made from ONE type of atom and cannot be broken down |
| Compounds | two or more elements are CHEMICALLY combined (NaCl -salt and H20 -Water) |
| homogeneous mixture | solution |
| What is matter? | Is anything that has mass and takes up space |
| How do particles move in a solid? | They vibrate in place, do not move |
| How do the particles move in a liquid?, | They are still close together, but they can move around each other in all directions. |
| How do the particles move in a gas? | They are very far apart, they have lost of energy and move very fast in all directions. The particles can even leave their container if it is not sealed." |
| What are some examples of matter that are pure substances? | Elements (H,O, C) and Compounds (H2O, NaCl) |
| What are some examples of Heterogeneous mixtures? | cookies, milk, salad, trail mix |
| What are some of Homogeneous mixtures? | lemonade, sweet tea, salt water |
| Homogenous Mixture | It is a mixture that looks like a single pure substance. Actually, it is a uniform mixture of two or more substances. |
| Conductivity | ability of a substance to transfer heat or electrical energy |
| Ductility | ,can be made into wires |
| Element, | a pure substance composed of the same type of atom throughout |
| Luster | gentle shining light that is reflected from a surfaceC |
| Malleability | a physical property of an object allowing it to be reshaped with bending or cracking |
| Metalloids | elements whose physical properties are intermediate between metals and nonmetals |
| Metals | elements that are mostly solids at room temperature, have luster, and are good conductors of heat and electricity" |
| Nonmetals | elements that are mostly liquids and gases at room temperature and bad conductors of heat and electricity |
| Periodic table of elements | an organized table of all the chemical elements in order of increasing atomic number |
| Precipitate, | a solid formed due to a chemical reaction of liquids |
| Rare Earth Elements | 17 metallic elements that are important to modern technology because of their magnetic properties |
Created by:
KAL74
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