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SOL STUDY!!
brief vocab of each unit to cover things from 6th, 7th & 8th grade science
| Term | Definition |
|---|---|
| Newton's 1st Law | an object at rest will remain at rest and an object in motion will remain in motion unless acted upon by an outside force. |
| Newton's 2nd Law | the net force of an object is equal to the product of its acceleration and its mass |
| Newton's 3rd Law | for every action, there is an equal and opposite reaction |
| Mass | the amount of matter in a substance |
| Weight | a measure of force due to gravity acting on a mass |
| Density | the amount of mass in a given volume |
| Independent Variable | what the scientist changes |
| Dependent Variable | what the scientist measures or observes |
| Control Group | the normal group; group without the independent variable |
| Constant | what stays the same throughout an experiment |
| Quantitative Data | Observations involving numbers |
| Qualitative Data | Observations that are descriptions without numbers |
| Hypothesis | An informed guess about what will happen in an experiment |
| Observation | Something that I see, smell, taste, hear or feel; a fact |
| Conclusion | the answer to my question; what i infer at the end of my experiment based on my observations |
| Experiment | what i do to test my hypothesis |
| Matter | anything that has mass and take up space; three phases and all are made up of atoms |
| Plasma | an electrically charged gas that have extremely high energy levels |
| Element | a pure substance that cannot be further separated into a simpler substance by chemical or physical means |
| Compound | a pure substance composed of two or more elements chemically combined |
| Mixtures | a combination of two or more pure substances that are not chemically combined |
| Solutions | a very well mixed mixture, having the same properties throughout |
| Acids | any substance that produces hydrogen ions (sour, b->r, corrosive) |
| Bases | any substance that produces hydroxide ions in water (slippery, bitter, corrosive, r->b) |
| Neutralization Reaction | when an acid and a base are mixed, chemical reaction occurs, forming salt and water |
| Period | a horizontal row of elements in the periodic table |
| Group ("family") | elements in the same vertical column of the periodic table; helps give you the number of valence electrons |
Created by:
lauren11
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