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Science Vocab List
IC2 How Can I Make New Stuff from Old Stuff?
| Term | Definition |
|---|---|
| Matter | anything that has mass and volume |
| Properties | characteristics of a substance that do not depend on the amount of the substance |
| Mass | the amount of matter in an object. |
| Volume | the amount of space an object takes. |
| Observation | to closely monitor something, or a phenomenon with the intention of collecting data and evidence. |
| Qualitative data | data that are observed carefully, descriptive but are not measured. Example: the painting is a water color. |
| Quantitative data | data that are measured and associated with numerical values and units. Example: the painting is 100 cm by 150 cm. |
| Ingredient | substances in a mixture |
| Substance | matter that is made of same atoms or molecules all the way through. |
| Atom | Smallest unit of matter that has all the properties of that matter. Example: every single atom of oxygen has the same property of another atom of oxygen |
| Mixture | made of two or more substances |
| Composition | is the arrangement, type, and ratio of atoms in molecules of substances. Example: every molecule of water, H2O, has two atoms of hydrogen and one atom of oxygen. Every molecule of hydrogen peroxide H2O2has two of each atoms. Water and hydrogen peroxide a |
| Color | color appearance of an object. Property.(reflection of the certain wavelength) |
| Odor | distinct smell of a substance |
| Solubility | the ability of a solid to dissolve in a liquid |
| Solution | mixture formed when substance dissolves |
| Solvent | the liquid in the solution |
| Solute | the solid in the solution |
| Dissolve | when solid solute disappears in the solvent |
| Melting point | temperature at which solid turns into liquid |
| Milliliter | metric unit for measuring liquids (1/1000 of a meter). |
| Milligram | metric unit for measuring solids (1/1000 of a gram). |
| Hardness | the ability of a substance to be scratched by another substance |
| Texture | the way substance feels to the touch. Example: rough, smooth, waxy, soapy, slippery, grainy, bumpy |
| Shape | general appearance such as a specific shape: round, square….. |
| Phases(states) of matter | solid, liquid, gas |
| Density | property of a substance. Product of mass divided by volume |
| Combine | -to put two or more substances together. Physical: results in a mixture, when the original substances keep their properties and can be separated. Example: salt water. Chemical: when the properties of original substances change and new substances are made |
| Chemical reaction | When new material are formed from old substances. The new material has different properties than the original material. It is extremely difficult, sometimes impossible to separate substances in chemical reaction. Example: wood burning. The burnt wood is t |
| Reactant | original material that the chemical reaction started with. |
| Product | final material formed at the end in a chemical reaction that have new properties. |
| Burning | a chemical reaction where the original material undergoes rapid or slow combustion which often results in heat, light or flames |
Created by:
22denney
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