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1. If the amount of water increases, then the height of the plant will increase. This is an example of . A hypothesis . 2 . The variable that is changed (manipulated) in an experiment . Independent variable .
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1. If the amount of water increases, then the height of the plant will increase. This is an example of • A hypothesis
2. The variable that is changed (manipulated) in an experiment • Independent variable
3. The variable changes (responds) as a result of a change in the independent variable • Dependent variable
4. An explanation that can be tested with a scientific investigation. • hypothesis
5. What is the sum of the numbers in a set of data divided by the number of entries in the set? • Mean
6. What is the middle number in a data set when the data are arranged in numerical order? • Median
8. What is the difference between the highest and lowest values in a data set? • range
10. Graduated cylinder measures • volume of a liquid
11. Mass is measured using what tool? • triple beam balance scale
12. A spring scale measures • weight
13. What tool would you use to measure length? • ruler • Trundle wheel
17. A scientific experiment that involves changing one factor and observing its effects on one thing while keeping all other things constant. • Controlled experiment
18. What is quantitative data ? • descriptions of the natural world using numbers
19. What is qualitative data? • descriptions of the natural world using words
20. What is the effect of the length of the paper airplane on the distance traveled? What is the independent variable? • length of the paper airplane