Objective 1 Saftey & Scientific Method
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
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1. If there is a clear chemical on your table during a lab, how should you identify it?
a. Ask your instructor what it is.
c. Smell the chemical.
b. Taste the chemical.
d. Rub the chemical between your fingers.
2. What are the potential dangers if a chemical from a lab spills on your hand?
a. Your hand could catch fire.
b. You will risk being infected with bacteria.
c. You could get a chemical burn.
d. You could cut your hand.
3. You are working with your lab partner, and your lab partner burns his hand. How do you apply first aid?
a. Apply direct pressure
b. Apply cold water and inform the instructor
c. Use the safety shower
d. Apply cold compresses
4. Which is the correct way to hold a test tube while heating its contents?
a. Pointing straight up
c. Pointing away from yourself and others
b. Pointing horizontally
d. Pointing straight at yourself
5. Why is it important to NOT run if your hair or clothing catches fire in a science lab?
a. It will cause others to run.
c. Running will feed oxygen to the fire.
b. Running will put out the fire.
d. The fire will burn out on its own.
6. You are performing a lab that involves a mouse. In your lab, you see the safety symbol of a mouse, indicating
a biological specimen will be used. Who does this precaution protect?
a. You and the mouse
c. The mouse only
b. You only
d. Your instructor
7. You are on your first field investigation to study the social behavior of ducks. When you get out into the field,
what is the first thing you do?
a. Assign a control
c. Report your results
b. Draw conclusions
d. Observe the ducks
8. You are performing an experiment to determine whether warm groundwater flows faster than cold
groundwater. Almost all of your data indicate that they flow at the same rate. However, during one trial, you
find data that suggest that warm water flows much faster than cold water. What should you do?
a. Report this data
c. Throw out this data
b. Redo the experiment
d. Change your hypothesis
9. You are in the rain forest studying the diet of tropical tree frogs. Which is inappropriate for you to do?
a. Keep out of sight.
c. Record all your data and observations.
b. Feed the frogs part of your food.
d. Reduce bias in the experiment.
10. A scientist conducts an experiment and concludes that the water in a pond is acidic. What should the next step
in the experiment be?
a. Repeat the experiment
b. Conclude that all ponds in the area are acidic
c. Start taking measures to reduce the acidity of the pond
d. Disregard the results and run the experiment again
Biology 1A TAKS
Answer Section
MULTIPLE CHOICE
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10.
A
C
B
C
C
A
D
A
B
A