| Term | Definition |
|---|
| factors | all the parts of an experiment |
| variable | a factor that can change the outcome of an experiment |
| controlled experiment | only one factor is changed at a time |
| control group | a group in which nothing is changed; compared to the experimental group |
| To solve problems... | scientists use imagination, creativity, and the scientific method |
| Testing the hypothesis... | is usually stated in "If... then..." format |
| Controlled experiments include... | a control group, experimental group (changes one factor,) and one variable |
| Knowledge grows due to... | asking new questions, the use of new technologies, and discovery of new information |
| SI | "International System of Units" |
| SI units are easy... | because they are based on multiples of 10 |
| 1 km | 1,000 m |
| 1 m | 100 cm |
| 1 cm | 10 mm |
| meter | measuring length |
| liter | measuring liquid |
| 1 L | 1,000 mL |
| gram | measuring mass |
| 1 kg | 1,000 g |
| Celsius | measuring temperature |
| freezes | At 0 degrees Celsius, water... |
| boils | At 100 degrees Celsius, water... |
| 37 degrees | Normal human body temperature (in Celsius)... |
| kilo- | 1,000 |
| hecto- | 100 |
| deca- | 10 |
| deci- | 0.1 (one tenth) |
| centi- | 0.01 (one hundredth) |
| milli- | 0.001 (one thousandth) |
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