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26 Cards in this Set

  • Front
  • Back
21. What does the prefix -milli mean?
22. What tool is used to measure the volume of a liquid?
A graduated cylinder
23. What is the next step after you collect data?
Analyze the results
24. Give the definition of model.
Models are representations of objects or systems.
25. Define data.
Data is what you collect while making observations to answer questions.
26. What is the basic SI unit for mass?
Kilogram or gram
15. What is the next step after forming a hypothesis?
Test your hypothesis
What should a scientist do next if their results from experimenting do not support their hypothesis?
1. Repeat their investigations and check for mistakes
2. Ask new questions
3. Form new hypothesis
17. What are three ways to search for answers to questions?
1. Do research
2. Make observations
3. Do an experiment
18. What is the SI unit for measuring length?
19. Why do scientists need to communicate the results of an investigation (experiment)?
In order to share information
20. What does the prefix -centi mean?
9. What SI unit of measurement would be used to express the distance from New York City to Los Angeles?
10. Why is it important to repeat the same experiment several times?
So the scientist can be certain about the conclusions of an experiment.
11. Define theory.
A unifying explanation for a broad range of hypothesis and observations that have been supported by testing.
12. Give at least three examples of tools used to collect data during an experiment.
1. Stopwatches---measures time
2. Rulers-----measures distance
3. Computers----makes calculations
13. What does the prefix -kilo mean?
14. Define observation.
An observation is when a person is using his or her own senses to gather information.
3. What is the SI unit for measuring volume?
Liter for liquids
cm3 for solids
4. What are the 3 main parts of a compound light microscope?
1. The stage
2. A light
3. A tube with lenses
5. What is the SI unit to measure temperature?
6. What are the six basic steps of the scientific method? (Short Answer)
1. Question
2. Observation
3. Hypothesis
4. Test hypothesis
5. Conclusion
6. Communicate results
What is the SI unit to measure temperature?
Give 2 limitations of most models. (Short Answer)
1. Models do not act exactly the same as the real thing.

2. Models do not look exactly like the real thing.
What is the difference between a theory and a law? (Short Answer)
A theory tells why something happens but a law only tells what happened.
Name 3 ways a scientist may look for an answer. (Short Answer)
1. Research
2. Observation
3. Experiment