Grade 11 Earth & Space Science Lab Practical
This worksheet assesses understanding of laboratory safety, equipment, and experimental design relevant to Earth & Space Science.
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Grade 11 Earth & Space Science Lab Practical
Name:
Date:
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Read each question carefully and answer to the best of your ability. Show all work where applicable.
1. Which of the following is the most important safety precaution when handling unknown chemical solutions in a lab?
Wearing a lab coat only
Using a fume hood and safety goggles
Tasting a small amount to identify it
Disposing of waste in the regular trash
2. Which piece of laboratory equipment is best suited for precisely measuring 25.0 mL of liquid?
Beaker
Erlenmeyer flask
Graduated cylinder
Test tube
3. When conducting an experiment, the factor that is changed by the experimenter is called the variable.
4. A is a tentative explanation for an observation that can be tested through experimentation.
5. Describe the importance of wearing appropriate personal protective equipment (PPE) in a science laboratory.
6. Explain the difference between qualitative and quantitative observations in an experiment.
7. It is acceptable to leave an ongoing experiment unattended as long as it is not dangerous.
True
False
8. All chemical waste can be poured down the sink with plenty of water.
True
False
Match the lab equipment with its primary function.
9. Bunsen burner
a. Measuring mass
10. Triple beam balance
b. Heating substances
11. Pipette
c. Holding and mixing solutions
12. Beaker
d. Transferring small, precise volumes of liquid
Identify the labeled pieces of laboratory equipment in the image below.
13. Item A:
14. Item B:
15. Item C:
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