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פתור תרגול זה עכשיו
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 hypothesis, draw conclusions, analyze results, communicate results.
B) Ask a question, make a hypothesis, test the hypothesis, analyze results, draw conclusions, 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 should restate the question
C) It is testable
D) It is an if/then statement
  • 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) dependent variable
B) controlled variable
C) independent variable
D) experimental variable
  • 5. In an experiment, the factor that we measure is called the
A) dependent variable
B) controlled variable
C) independent variable
D) conclusion
  • 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 water
B) the temperature of the water
C) the number of plants in the water
D) the amount of salt in the water
  • 7. All the things in an experiment that must be the same to make it fair are called
A) controlled variables or constants
B) controlled experiments
C) independent variables
D) dependent variables
  • 8. In science, an educated guess is called a/an
A) question
B) hypothesis
C) conclusion
D) observation
  • 9. If you do not understand a direction or part of a lab procedure you should
A) try several methods until one works
B) figure it out as you go
C) ask your teacher
D) skip it and go to the next part
  • 10. If you break glassware, like a beaker you should
A) crush the remaining glass down for easier disposal.
B) immediately notify the teacher and those around you to the hazard, and never clean up yourself.
C) conceal the accident so your group does not get in trouble.
D) sweep the glass off the table and put in the trash.
  • 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) tell the teacher immediately
D) see a doctor after school.
  • 12. Whose responsibility is it to care for lab equipment and to report damage
A) every person participating in a lab has the responsibility.
B) the principal mainly.
C) only the teacher has the responsibility
D) only the person assigned to that task.
  • 13. Horseplay, practical jokes, and pranks in the science lab are
A) always against the rules.
B) okay.
C) not dangerous.
D) okay if you are working alone.
  • 14. What is the main classroom rule for this class?
A) stay in my seat
B) there are no rules
C) respect myself and others
D) be quite at all times
  • 15. Approved eye protection devices, like goggles, are worn in the lab
A) only if you do not wear corrective lenses.
B) any time your teacher instructs you to wear them.
C) to avoid eye strain.
D) to improve vision.
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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