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7th grade U0 and U1
Vocabulary from Unit 0 and Unit 1
| Term | Definition |
|---|---|
| Fair test | a scientific experiment where only one variable, the independent variable, is changed while all other conditions, the controlled variables, are kept the same |
| Independent variable | The independent variable is the thing you're testing in an experiment to see if it causes an effect in another variable(the dependent variable). |
| Dependent Variable | Is what you measure in the experiment and what is affected during the experiment. |
| Constant Variable | constant is a variable that could change, but that the experimenter keeps constant in order to more clearly see if the independent variable has an effect. |
| Hypothesis / Claim | a proposed explanation or answer to the research question that can be tested through experiments |
| Conclusion | An explanation or interpretation of the data that tries to answer whether the hypothesis was correct or incorrect. |
| Graduated Cylinder | An instrument used to measure the volume of liquids directly and small solids using the displacement method. The preferred unit of measurement is ml. |
| Beaker | An instrument used to hold liquids and solids. It is not used for measurement |
| Syringe | An instrument used for holding and measuring small volumes of liquids or gases. The preferred unit of measurement is ml. |
| Digital Scale | An instrument used to measure the mass of a substance. The preferred unit of measurement uses grams. |
| Ruler | An instrument used to measure the length, width, height or other dimensions of a substance. It is used to determine the volume of rectangular solids using the formula, L * W * H. The unit of measurement is cm. |
| Matter | The stuff everything in the universe is made of. The most important properties of matter are mass and volume. If something does not have mass or volume it is not matter. |
| Mass | A measure of the amount of the substance |
| Volume | A measure of the size the substance takes up |
| Observation | A description of a substance |
| Inference | A prediction or interpretation of an observation or set of observations. |
| Qualitative Data/Qualitative Observation | Data consisting of words, pictures, observations, and symbols, and other information that can’t be expressed as a number |
| Quantitative Data/Quantitative Observation | Data consisting of numbers, measurements, and calculation of numbers. |
| Thermometer | A tool used to measure the temperature of a substance. The unit of measurement is Celsius. |
| Data | Data is any information that is collected during an investigation. Data includes and is broader than evidence. |
| Evidence | Evidence is the data that is used to support an inference. Evidence is a subset of data. |
| Claim | An answer to a question that a writer is using evidence and inferences to support or refute. |
| flask | Glassware that has a flat bottom and curved sides that is used for holding liquids or gasses(with a stopper). |
| Spatula/Scapula | A spoonlike instrument for measuring or stirring |
| Displacement | The method of determining the volume of solid by subtracting the initial volume from the final volume because whatever is placed in the water forces the water level higher. |
| Chemistry | The study of the properties of matter and how matter changes during chemical reactions |
| variable | Anything that could possibly effect an experiment |
| Physical Properties | The characteristics of a substance that can be directly observed and are used to identify the substance |
| States of Matter | One of the three forms matter takes--solid, liquid, and gas. |
Created by:
user-1994544