Lab Safety quiz 2021 PDF

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lab safety quiz includes pictures of lab tools...

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Quiz: Lab Safety, Lab Tools, Experimental Variables I. Multiple Choice. Choose the answer that best completes the sentence.

1. When making an observation about the odor of a substance, the scientist should _________ . A. place his/her nose very close and breathe deeply to get a strong sample B. waft across the top of the container to bring some molecules toward the nose C. add dry ice to the substance and see if there is a chemical reaction

2. If a glass is breaks during a lab, the student should ______________ . A. quickly pick up the pieces, put them in the trash, and then tell the teacher B. place a trash can over the glass, then proceed with the lab C. notify the teacher, who will sweep the glass and clean the area

3. The most important rule to remember during a lab is __________________ . A. no horseplay, including disturbing/going to other groups B. use a pen to collect data C. keep a hair tie in your pencil pouch

4. If a chemical splashes in your eyes, you should ____________________ . A. run quickly down the hall to the nurse B. go immediately to the eye wash station and begin rinsing your eyes C. raise your hand and wait for your teacher to escort you to the eye wash station

5. The snail pictured to the right has a length of _____________________ . A. 2.0 cm C. 20 cm B. 2.5 cm D. 25 cm

Identify the lab tools numbered 6, 7, and 8 by selecting the correct letter from the list on the right:

A. B. C. D. E.

6

7.

8

triple beam balance beaker flask graduated cylinder meter stick

9. The most reasonable unit of measurement of the height of a table would be ___________ . A. millimeters B. centimeters C. kilometers 10. A graduated cylinder measures volume in units abbreviated _______________ . A. L B. mL C. mm

11. When there is a cause-and-effect relationship in an experiment, the cause is the A. independent variable B. dependent variable

Use this question to answer questions 12 and 13 :

Do tree frogs jump farther than blue dart frogs? 12. Which is the independent variable? A. distance jumped B. jumping conditions C. type of frog 13. Which is the dependent variable? A. distance jumped B. jumping conditions C. type of frog

14. When you return from an absence, the order you should follow is: A. check the class basket for any papers, ask your partner to explain what you missed, then see Ms. Carney B. ask Ms. Carney what you missed just as class begins C. see Ms. Carney during homeroom and check the basket for your work D. A and C are both correct

15. To find information and links for each day’s science lesson, you go to _________________ A. Ms. Carney’s Google Classroom B. Ms. Carney’s Canvas Home Page and click the “This Week’s Lesson’s” button C. Ms. Carney’s Canvas Home Page and click the “Syllabus” button...