Scientific Method and Lab Safety Quiz

1. What is the correct order of the steps in the scientific method.

A) Ask a question, make a hypothesis, test the hypothesis, analyze results, draw conclusions, communicate results.
B) Ask a question, make a hypothesis, test hypothesis, draw conclusions, analyze results, communicate results.
C) Ask a question, analyze results, make a hypothesis, test the hypothesis, draw conclusions, communicate results.
D) Make a hypothesis, test the hypothesis, analyze the results, ask a question, draw conclusions, communicate results.

2. Which of the following is NOT a rule when writing a hypothesis?

A) It is a prediction.
B) It is an if/then statement
C) it should restate the question
D) It is testable

3. A series of steps designed to help you solve problems and answer questions

A) experiment
B) scientific method
C) hypothesis
D) observation

4. In an experiment, the one variable that is changed is called the

A) experimental variable
B) independent variable
C) dependent variable
D) controlled variable

5. In an experiment, the factor that we measure is called the

A) independent variable
B) dependent variable
C) conclusion
D) controlled variable

6. A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. In this experiment the dependent variable is

A) the temperature of the water
B) the number of plants in the water
C) the amount of salt in the water
D) the water

7. All the things in an experiment that must be the same to make it fair are called

A) dependent variables
B) controlled variables or constants
C) independent variables
D) controlled experiments

8. In science, an educated guess is called a/an

A) conclusion
B) observation
C) question
D) hypothesis

9. If you do not understand a direction or part of a lab procedure you should

A) try several methods until one works
B) ask your teacher
C) figure it out as you go
D) skip it and go to the next part

10. If you break glassware, like a beaker you should

A) sweep the glass off the table and put in the trash.
B) crush the remaining glass down for easier disposal.
C) immediately notify the teacher and those around you to the hazard, and never clean up yourself.
D) conceal the accident so your group does not get in trouble.

11. If you have been injured in the laboratory (cut, burn,etc.) you should

A) visit the nurse after class.
B) apply first aid yourself.
C) see a doctor after school.
D) tell the teacher immediately

12. Whose responsibility is it to care for lab equipment and to report damage

A) only the teacher has the responsibility
B) every person participating in a lab has the responsibility.
C) the principal mainly.
D) only the person assigned to that task.

13. Horseplay, practical jokes, and pranks in the science lab are

A) okay.
B) always against the rules.
C) not dangerous.
D) okay if you are working alone.

14. What is the main classroom rule for this class?

A) there are no rules
B) be quite at all times
C) respect myself and others
D) stay in my seat

15. Approved eye protection devices, like goggles, are worn in the lab

A) any time your teacher instructs you to wear them.
B) only if you do not wear corrective lenses.
C) to improve vision.
D) to avoid eye strain.

תלמידים שפתרו תרגול זה פתרו גם :

Ch. 7 lesson 1 p.167-169
Introduction to genetics
Ch 2 Test-Interaction of living things

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