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Scientific Thinking
Test Description: Unit 1
Instructions: Answer all questions to get your test result.
1) A satellite image of a hurricane helps weather forecasters to
A
explain the effects of global warming on the ocean currents
B
warn residents of hazardous weather conditions
C
predict the times of high tide and low tide
D
predict the total number of storms to occur in one year
2) I am trying to clean my bathroom because it has mold. I was told to use Oxy Clean to get rid of it. I use Oxy Clean on half of the bathroom and water on the other half. The control is
A
The bathroom
B
Me
C
Water
D
Oxy Clean
3) Which of the following would make sure experimental results were valid?
A
Communicate uncertain results
B
Conduct multiple trials
C
Add bias
D
Pick two hypotheses
4) Observing is what you can
A
Throw
B
See, hear, smell, taste and feel
C
Taste and feel
D
See and hear
5) Which of the following is a quantitative observation?
A
The flame is flickering
B
My eyes are blue
C
My foot length is 26 cm
D
Chemistry is an easy subject
6) Homer's shower is covered in green slime. He sprays half of the shower with coconut oil and the other half with water to see what works better at getting rid of the slime. What is the Independent Variable in Homer's experiment?
A
Water
B
Coconut oil
C
His shower
D
Slime
7) What are the variables that do not change during each trial of an experiment?
A
Dependent
B
Control
C
Independent
D
Constants
8) What is the variable the experimenter is testing and changing?
A
Independent
B
Dependent
C
Control
D
Constants
9) A scientist put lime at the base of sunflower plant A and baking soda at the base of sunflower plant B. Sunflower plant A died, and sunflower plant B stayed healthy. What is the dependent variable?
A
What the plants were grown in
B
The response fo the plants to each substance
C
They type of plant
D
The substance at the base of each plant
10) Scientists test a hypothesis by
A
Designing models
B
Doing experiments
C
Drawing conclusions
D
Formulating questions
11) A weather map is an example of a
A
Model
B
Conclusion
C
Variable
D
Theory
12) When a scientist shares his or her findings with other scientists, the scientist is
A
Communicating
B
Hypothesizing
C
Theorizing
D
Experimenting
13) When you decide whether or not the data support the original hypothesis, you are
A
Posing a question
B
Making an observation
C
Making an inference
D
Drawing a conclusion
14) Your friends return form a kayak trip and they are dripping wet. What inference might you make?
A
They are skillful at kayaking
B
Their clothes are wet
C
They are tired
D
Their canoe tipped over
15) Measurements of the number of leaves of various plants in an experiment are called
A
Inquiries
B
Theories
C
Inferences
D
Data
16) What skill is a scientist using when she listens to the sounds a lion makes?
A
Drawing conclusions
B
Drawing conclusions
C
Making observations
D
Developing hypotheses
17) What characteristic must be true of a good hypothesis?
A
It must be testable by observation or experiment
B
It must have been observed many times
C
It must be correct
D
It must involve quantitative data
*select an answer for all questions
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