Term
| 1. What type of equipment woukd you need to calculate density, volume, and mass? |
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Definition
Volume- Graduated Cylinder
Mass- Triple Beam Balance
Density= Mass/Volume |
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Term
2. Which of the following is the least important to know about chemicals you are handling in the lab?
A. First Aid
B. Disposal Methods
C. Cost of Chemicals |
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Definition
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Term
3. Which is the most precise measurement of a liquid?
A. 20 mL beaker with 25 mL increments
B. 100 mL in a graduated cylinder in 1 mL increments
C. 30 mL in a graduated cylinder in .5 increments |
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Definition
C. 30 mL in a graduated cylinder in .5 increments |
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Term
4. Define Accuracy. Define Precision.
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Definition
Accuracy- how close to a target or accepted value something is.
Precision- more than one measurement of a value are closely-grouped together |
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Term
| 5. What are the steps in the scientific method? |
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Definition
Problem or Observation
Ask a question
Form a hypothesis
Perform experiment to test hypothesis
Evaluate results
Draw a conclusion
(Reformulate hypothesis if necessary)
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Term
| 6. How do you write a hypothesis? How do you know it your hypothesis is accurate? |
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Definition
a. If-then statement
b. Perform an experiment to test it |
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