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Nature of Science preview

Total questions: 55

Worksheet time: 41mins

Name
Class
Date
1.
The findings of experiments are generally not accepted until they are ____________.
a)
Replicated
b)
Published
c)
Proven
d)
Recorded
2.
A series of steps scientists use to solve problems and answer questions: 
a)
Scientific Steps
b)
Scientific Method
c)
Scientific Series
d)
Theory
3.

I see that Ms. Elisier is holding a coffee cup, I assume that there is coffee in the coffee cup.  By making the assumption that there is coffee in the mug, I have made a(n)

a)
Observation
b)
Inference
c)
Classification
d)
Experiment
4.
All the observations, measurements, and data scientists gather in support of a scientific explanation
a)
Hypothesis
b)
Valid
c)
Invalid
d)
Empirical evidence
5.
Anything that can change during an experiment is a(n)
a)
Experiment
b)
Variable
c)
Hypothesis
6.
A testable idea or explanation that leads to a scientific investigation is called (can be stated as an if/ then statement)
a)
conclusion
b)
experiment
c)
hypothesis
7.

Using one or more of your senses to gather information is called

a)

observing

b)

inferring

c)

predicting

d)

classifying

8.

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

9.

The part of an experiment in which all conditions are kept the same is the

a)

hypothesis

b)

control

c)

conclusion

d)

independent variable

10.
Which of the following is a scientific observation? 
a)
The potato is brown in color.
b)
The potato tastes the best.
c)
The potato may cause allergies.
d)
The potato smells funny. 
11.
What is another word for hypothesis?
a)
evidence
b)
graph
c)
investigation
d)
prediction
12.
Why should an experiment be repeated?
a)
to form a hypothesis
b)
to reduce the chance of error
c)
to change controls
d)
to identify the problem
13.
What is an inference? 
a)
Just a guess.
b)
A statement based off of your observations. 
c)
The same as an observation. 
d)
Examples of something. 
14.
The factor in an experiment that will be changed. 
a)
dependent variable
b)
independent variable
c)
controlled variable
d)
inferences 
15.
The summary at the end of an experiment that explains the results, and referrers to the hypothesis using data. 
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
16.
The test of a hypothesis is called a
a)
control
b)
dependent variable
c)
conclusion
d)
experiment
17.
Things that stay the same throughout the whole experiment are called
a)
controls
b)
conclusions
c)
independent variables
d)
constants
18.
The name of the information that you get from your experiment (you organize it into charts and graphs).
a)
observations
conclusion
b)
data
c)
variables
d)
hypothesis
19.
A hypothesis is simply a prediction that has not yet been _.
a)
proven or disproven
b)
made into a theory
c)
results calculated
d)
written about
20.
This variable is the actual data collected during the experiment. 
a)
independent variable
b)
dependent variable
c)
control group
d)
data group
21.
What do you do after chemicals got in your eye.
a)
Run and scream to the hospital.
b)
Wash your eyes out in eye station for 15 minutes
c)
Ignore it.
d)
Tell a teacher.
22.
What is this tool?
a)
fire hydrant
b)
smoke detector
c)
fire alarm
d)
fire exstinguisher
23.
What is used to protect your eyes from chemicals, broken glass, and fire?
a)
Fire blanket
b)
Eye wash
c)
Goggles
d)
Flask
24.
Newton’s third law of motion states that for every action there is an equal and opposite reaction. How does this law differ from a theory?
a)
A theory explains a set of well tested observations; a law describes a pattern in nature.
b)
Laws can be changed with the addition of new evidence but theories cannot.
c)
A law explains a pattern in nature in more detail than a theory. 
d)
Theories are based on more evidence than laws.
25.
In which statement does the word theory mean scientific theory?
a)
In theory, the experiment will work as planned. 
b)
She has a theory about why the storm arrived later than predicted. 
c)
The atomic theory explains that material objects are made up of atoms. 
d)
The doctor’s prescription for curing a cold is based on his best theory or guess. 
26.
Joe tells Mai his theory about why sea turtles nest on the beach instead of in the ocean. He says, “The turtle eggs would sink to the bottom of the ocean, and the baby turtles would drown.” Joe says his uncle is a fisherman, who told Joe this information. Mai tells Joe that his theory is not scientific. Which explanation supports Mai’s evaluation of Joe’s theory?
a)
Joe’s idea is already a scientific law. 
b)
Joe’s idea is not supported by scientific evidence. 
c)
Joe’s idea is a good guess that can be tested by experiments. 
d)
Joe’s idea accurately explains why sea turtles nest on the beach. 
27.
Why is it important that scientists modify scientific theories when important new information is discovered?
a)
to confuse other scientists
b)
to keep the theory interesting and fresh
c)
to keep the theory as accurate and effective as possible
d)
to make sure the general public does not understand the theory
28.
 A biologist is investigating the effects of growth hormone on the rate of metamorphosis in butterflies. Which of the following methods of investigation would work best for the biologist investigating any possible effects?
a)
models
b)
controlled experiments
c)
systematic observations
d)
random sampling of populations
29.
Eduardo is a conservation biologist. He needs to develop a plan to preserve wetlands. He begins his project by studying the data in the following chart. How is Eduardo using scientific methods in developing a plan?
a)
He is analyzing data about causes and effects.
b)
He is analyzing a hypothesis about causes and effects.
c)
He is proposing an experiment about causes and effects.
d)
He is using intuition to determine causes and effects.
30.
Scientists discuss and debate experimental results and possible explanations in studying phenomena. Which best explains why scientists debate while searching for explanations?
a)
because debating helps scientists focus on empirical evidence, analyzing both the strengths and weaknesses of the evidence
b)
because debating helps the scientific community to present interesting and exciting science to the public
c)
because debating gives scientists an opportunity to express their feelings and opinions about the subject
d)
because every scientist wants to find an accurate explanation and disprove others’ explanations
31.
Unprotected exposure to the sun’s rays is a factor in the development of skin cancer. Which   of the following is an example of empirical evidence that supports this hypothesis?
a)
a model of a skin cell showing where DNA is in the cell
b)
a skin cancer survivor’s recollection that he had a bad sunburn as a child
c)
data demonstrating a relationship between amount of sun exposure and incidences of skin cancer
d)
an advertisement for a sun block product that claims it protects skin for ultraviolet rays
32.

Using one or more of your senses to gather information is called

a)

observing

b)

inferring

c)

predicting

d)

classifying

33.

Which of the following are NOT examples of data?

a)

facts

b)

figures

c)

theories

d)

measurements

34.

A well-tested explanation for a wide range of observations or experimental results is called a scientific

a)

inquiry

b)

hypothesis

c)

theory

d)

law

35.

A statement that describes what scientists expect to happen every time under a particular set of conditions is a

a)

scientific inquiry

b)

scientific hypothesis

c)

scientific theory

d)

scientific law

36.

Observations that deal with a number or amount are called

a)

manipulated observations

b)

quantitative observations

c)

qualitative observations

d)

operational observations

37.

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

38.

Grocery stores organize food according to food type—dairy, frozen, bakery, and so on. This is an example of

a)

observation

b)

posing questions

c)

classifying

d)

inferences

39.

The steps commonly used by scientists in gathering information to test hypotheses and solve problems are called

a)

descriptive research

b)

pure science

c)

scientific methods

d)

applied science

40.
Which observation is quantitative?
a)
It is 5 cm long
b)
It is smooth
c)
It looks red
d)
It is dry
41.

These kind of observation use your senses to observe results.

a)

qualitative

b)

quantitative

42.
 An organized procedure to study something under controlled conditions is called:
a)
theory
b)
experiment 
c)
observation
d)
hypothesis
43.
 A testable idea or explanation that leads to scientific investigation based on prior knowledge is known as: 
a)
theory
b)
experiment 
c)
observation
d)
hypothesis
44.
Factor that you keep the same in an experiment
a)
Independent Variable
b)
Dependent Variable 
c)
Controlled Variable
d)
Operational Definition
45.
The final results and answers to your big question is shared in your ________________.
a)
conclusion
b)
hypothesis
c)
observation
d)
inquiry
46.
After a scientific experiment is performed, data is recorded, and conclusions are drawn, what should be done next?
a)
Share your research with other scientists
b)
Keep your research a secret
c)
Destroy all evidence of your experiment
47.
A set of step-by-step instructions is called a ______________________.
a)
procedure
b)
data
c)
inquiry
d)
hypothesis
48.

A scientific idea tested by multiple scientists and supported by multiple pieces of tested factual evidence is a...

a)

Theory

b)

Scientific Law

c)

Hypothesis

d)

Fact

e)

Data

49.

What can undo a theory?

a)

A single test proving a theory wrong

b)

A single "repeatable" test proving a theory wrong

c)

A change in publics opinion of a theory

d)

Politicians can pass laws undoing a theory

50.

What is science? (pick all correct answers)

a)

Science is able to solve all the worlds problems

b)

Science is measurable and observable

c)

Science is a search for truth and understanding

d)

Science is opinions and personal beliefs

e)

Science consists of strong theories inferred from solid evidence

51.

Science is not? (pick all correct answers)

a)

Science is open to change and modifiable

b)

Science is based on faith and belief

c)

Able to solve all the worlds problems

d)

Science is made stronger by multiple lines of evidence

e)

Science is decided by debate, law, and politics

52.

Which of the following statements about hypotheses is true?

a)

Hypotheses can never be

changed.

b)

Hypotheses are always proven to be true.

c)

Hypotheses can be accepted or rejected

d)

Hypotheses can be proven true without evidence.

53.

Helen is studying the growth of two different types of plants. She planted two of each type of plant in locations with different levels of sunlight: full sun, partial shade, and full shade. For five weeks, Helen records the number of new leaves on each plant.

Which of the following statements correctly describes the independent and dependent variables in Helen's experiment?

a)

The independent variable is the kind of plant, and the dependent variable is the amount of sunlight.

b)

The independent variable is the amount of sunlight, and the dependent variable is the number of new leaves.

c)

The independent variable is the amount of sunlight, and the dependent variable is the kind of plant.

d)

The independent variable is the number of new leaves, and the dependent variable is the amount of sunlight.

54.

Samuel conducts an experiment. He makes many observations and measurements and records each very carefully. At the conclusion of the experiment he discovers that the data he collected do not support his hypothesis. What should he do?

a)

Report his observations and conclusions honestly, clearly stating that the data do not support the hypothesis.

b)

Change his hypothesis to one that is supported by the data.

c)

Change the data so that they support his hypothesis.

d)

Throw all of his data and observations away and repeat the experiment

55.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid