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Name: 
 

Introduction to Life Science


Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 
The ways in which people change the world around them to meet their needs or solve practical problems are called
A
science.
B
technology.
C
feedback.
D
systems.
 

 2. 
What is the goal of technology?
A
to produce and deliver cereal
B
to understand how the natural world functions
C
to study the natural world
D
to improve the way people live
 

 3. 
Science and technology are
A
the same thing.
B
not important.
C
dependent on each other.
D
completely unrelated.
 

 4. 
An endoscope is an example of
A
science.
B
technology.
C
brainstorming.
D
prototyping.
 

 5. 
One positive effect of pesticides is
A
greater food production.
B
creating more work for farmers.
C
pesticides washing into streams.
D
pesticides harming people and animals.
 

 6. 
What are some reasonable safety precautions for field investigations?
A
None; there are no hazards in the field.
B
Always wear goggles and aprons.
C
Be prepared and use common sense.
D
Always go into the field alone.
 

 7. 
What is the first thing you should do if an accident occurs?
A
Find the emergency equipment.
B
Notify your teacher.
C
Go to the nearest hospital.
D
Start first aid treatment.
 

 8. 
Using one or more of your senses to gather information is called
A
observing.
B
inferring.
C
predicting.
D
classifying.
 

 9. 
Observations that deal with a number or amount are called
A
manipulated observations.
B
quantitative observations.
C
qualitative observations.
D
operational observations.
 

 10. 
Observations that deal with descriptions that cannot be expressed in numbers are called
A
manipulated observations.
B
quantitative observations.
C
qualitative observations.
D
operational observations.
 

 11. 
Explaining or interpreting the things you observe based on reasoning from what you already know is called
A
observing.
B
inferring.
C
predicting.
D
classifying.
 

 12. 
Trying to explain why a cactus needs little water to survive is an example of
A
a prediction.
B
drawing a conclusion.
C
scientific inquiry.
D
classification.
 

 13. 
Making a forecast of what will happen in the future based on past experience or evidence is called
A
observing.
B
inferring.
C
predicting.
D
classifying.
 

 14. 
When scientists put things into categories or group together items that are alike in some way, they are
A
inferring.
B
predicting.
C
classifying.
D
making models.
 

 15. 
When scientists create a representation of a complex process, they are
A
inferring.
B
predicting.
C
classifying.
D
making models.
 

 16. 
Knowing how to use lab equipment is an example of
A
good lab preparations.
B
performing a lab.
C
being in the filed.
D
completing a lab.
 

 17. 
In a scientific experiment, a statement that describes how to measure a particular variable or define a particular term is a(n)
A
hypothesis.
B
manipulated variable.
C
operational definition.
D
responding variable.
 

 18. 
If a beaker breaks, the first thing you should do is
A
clean up the broken glass.
B
ask a classmate for help.
C
read safety symbols for the lab.
D
notify your teacher.
 

 19. 
Scientists’ skepticism should be balanced with an ability to
A
accept new and different ideas.
B
be honest.
C
find solutions to problems.
D
learn more about the topics they study.
 

 20. 
What scientific attitude is especially important when a scientist’s results go against previous ideas?
A
curiosity
B
honesty
C
skepticism
D
creativity
 

 21. 
Grocery stores organize food according to food type—diary, frozen, bakery, and so on. This is an example of
A
observation.
B
posing questions.
C
classifying.
D
inferences.
 

 22. 
Scientists can communicate their results
A
at scientific meetings.
B
in scientific journals.
C
by exchanging information on the Internet.
D
all of the above
 

 23. 
The use of endoscopes to study the functions of the heart shows that
A
advances in science and technology often depend on one another.
B
science is important to technology.
C
science changes the natural world.
D
technology is independent from science.
 

 24. 
A person who is trained to use both technology and scientific knowledge to solve practical problems is known as a(n)
A
biologist.
B
engineer.
C
forest technician.
D
scientist.
 

 25. 
To reveal trends in data, the data should be presented in a(n)
A
hypothesis.
B
graph.
C
operational definition.
D
scientific investigation.
 

Modified True/False
Indicate whether the sentence or statement is true or false.  If false, change the identified word or phrase to make the sentence or statement true.
 

 26. 
Eye glasses are one example of how technology has improved lives. _________________________

 

 27. 
Technology never has negative consequences for society. _________________________

 

 28. 
Safety symbols alert you to possible dangers and identify safety equipment you should use. _________________________

 

 29. 
When you do field work, you should never tell an adult where you will be. _________________________

 

 30. 
In science, skepticism means coming up with inventive ways to solve problems or produce new things. _________________________

 

 31. 
Thinking and questioning is the start of the scientific inquiry process. _________________________

 

 32. 
A knowledge of life science is essential for botanists, forest technicians, park rangers, and health-care workers. __________________________

 

 33. 
A(n) hypothesis is a statement that describes how to measure a particular variable or define a particular term. _________________________

 

 34. 
A model is a good way for scientists to look for patterns or trends in data. _________________________

 

 35. 
Counting ten bikes on a bike rack is an example of a qualitative observation. _________________________

 

Completion
Complete each sentence or statement.
 

 36. 
Products that help people meet their needs or solve practical problems are examples of ____________________.
 

 

 37. 
Technology ____________________ solve every problem.
 

 

 38. 
Just as in the lab, safety is also important when doing activities in the ____________________.
 

 

 39. 
____________________, which is the process of grouping together items that are alike in some way, helps a scientist organize information.
 

 

 40. 
Scientists who possess the attitude of ____________________ always report their observations and results truthfully.
 

 

 41. 
Scientists who possess the attitude of open-mindedness are capable of accepting ____________________ ideas.
 

 

 42. 
Scientific ____________________ refers to the diverse ways in which scientists study the natural world and propose explanations based on the evidence they gather.
 

 

 43. 
After interpreting data, a scientist will draw ______________________ about their results.
 

 

 44. 
In science, a hypothesis must be ____________________.
 

 

 45. 
An experiment in which only one variable is manipulated at a time is called a(n) ___________________ experiment.
 

 

Short Answer
 
 
Use the diagram to answer each question.

Chimpanzee Diet in November
Food
% Diet
Fruit
62.0%
Insects
16.0%
Leaves
16.0%
Miscellaneous
6.0%
 

 46. 
Explain how researchers might have obtained the data shown in the table.
 

 47. 
Describe how the chimpanzee’s diet has been classified.
 

 48. 
How does the data provide an example of scientific inquiry?
 

 49. 
Do the data in this table represent quantitative observations or qualitative observations? Explain.
 

 50. 
Describe another method for presenting the data in the table above and explain the method’s benefits.
 
 
Use the diagram to answer each question.

Number of Chirps per Minute
Cricket
15°C
20°C
25°C
1
91
135
180
2
80
124
169
3
89
130
176
4
78
125
158
5
77
121
157
Average
83
127
168
 

 51. 
What is the purpose of recording data in a table like the one above?
 

 52. 
Is there a relationship between the number of chirps per minute and the temperature? If so, describe the relationship.
 

 53. 
What hypothesis might this experiment be designed to test?
 

 54. 
Identify the manipulated variable and the responding variable in this experiment. Explain.
 

 55. 
State a conclusion based on the data from this experiment.
 

Essay
 

 56. 
What is the difference between science and technology? How are they related?
 

 57. 
Compare and contrast the skills of inferring and predicting.
 

 58. 
Identify and describe five attitudes, or habits of mind, that are important for a successful scientist to possess.
 

 59. 
Identify the six major stages of the process of scientific inquiry and explain why the process is not a rigid sequence of steps.
 

 60. 
Suppose you want to find out the effects of light on the growth of tomatoes. What variables would you need to control in your experiment?
 



 
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