Science 7-Final
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23 terms
Terms | Definitions |
|---|---|
 1 kg = | 1,000 grams |
| 1 m = | 100 centimeters |
| 1 L = | 1,000 milliliters |
| Hypothesis | a prediction of the outcome of an experiment |
| Inference | a statement believed to be true based on observations |
| Observation | using your senses or tools to record properties of an object |
| Why is the metric system used in science? | • The metric system is used worldwide...except U.S. • The metric system is based on 10, which makes conversions easier. |
| What tool is used to measure mass? | a balance |
| What tool is used to measure weight? | a scale |
| What tool is used to measure distance? | a ruler/meter stick |
| What tool is used to measure volume? | a beaker or graduated cylinder |
| Length=(metric units) | meters |
| Force= (metric units) | Newtons |
| Mass= (metric units) | grams |
| Volume=(metric units) | cm3 or milliliters |
| Speed= (metric units) | meters/seconds |
| Weight= (metric units) | Newtons |
| Density= (metric units) | grams/ cm3 |
| Acceleration= (metric units) | meters/second/second |
| Temperature= (metric units) | degrees Celsius |
| What is volume? | Volume is the amount of space matter occupies. (the size of an object) |
| How do you calculate the volume of rectangular objects? | V=L x W x H |
| How do you calculate the volume of irregular objects? | Irregular objects: find volume by displacement (measure how much the volume of water increases when an object is submerged in water) |
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