Based on the information in the data table, what should the pharmaceutical company conclude?

Chemical X was not shown to be effective in the prevention of colds.

The order of the Scientific Method is....

Observe, Ask a ?, Make Hypothesis, Do Experiment, Gather Data, Conclusion

How can Alexis design an investigation to make sure results are accurate and other scientists can replicate experiment?

reaction time measured and recorded many times , detail report of procedure

A biologist has completed an experiment, what would be their next step in their investigation?

Share their results so other scientists can confirm their findings

What should they do to improve their investigation?

1 friend should same baseball and bat to limit test variables to one

A scientific inference...

...is an interpretation of data that lets you make your conclusion.

What error did Jose make?

Jose’s plan has more than one test variable (independent variable).

Which statement best explains why a scientist would come up with a new hypothesis after completing an investigation?

address any new questions that come up after completing the investigation.

The last step in the scientific method is ________________.

Communicate and Repeat Experiment

What is the "scientific method"?

An organized way of questioning, seeing, and answering.

Scientific variables are...

independent, dependent, and controls

Which of the following is a characteristic of a scientific investigation?

record accurate data and observations

What is a scientific theory?

well-substantiated explanation of the natural world thta explains why

Type of plants; tap water control variables. Which of following conclusions best supported the data Marcus collected?

Sparkling water increase plant growth; resulted in greatest average growth

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Practice of Science Test Review

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District nature of science CRM questions

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Questions 26

Answers

1
Based on the information in the data table, what should the pharmaceutical company conclude?
Chemical X was not shown to be effective in the prevention of colds.
Sugar was more effective than Chemical X in the prevention of colds.
Sugar kept Chemical X from being effective in preventing colds.
Chemical X was shown to be effective in preventing colds.
2
This step of the scientific method requires test your hypothesis with variables and constants
Experimentation
Analyzing Date
Conclusion
Doing Research
3
Elijah will need to record the temp of a heated object every minute for 5 min. Which table should he use to record data?
Choice A
Choice B
Choice C
Choice D
4
The order of the Scientific Method is....
Observe, Ask a ?, Make Hypothesis, Do Experiment, Gather Data, Conclusion
Ask a ?, Observe, Make Hypothesis, Gather Data, Do Experiment, Conclusion
Observe, ask ?, Make Hypothesis, Do Experiment, Conclusion, Gather Data
Ask a ?, Observe, Make Hypothesis, Do Experiment, Get Data, Conclusion
5
How can Alexis design an investigation to make sure results are accurate and other scientists can replicate experiment?
reaction time measured multiple times; repeat her experiment more than once
record all observations and record inferences to show summary to others
reaction time measured and recorded many times , detail report of procedure
measure reaction time of same person multiple times and publish her results
6
A biologist has completed an experiment, what would be their next step in their investigation?
Keep their results to themselves
Share their results so other scientists can confirm their findings
Change the data to fit the original hypothesis
Update their hypothesis based on their results
7
A valid scientific investigation must be able to be
graphed.
predicted.
replicated.
observed.
8
Scientific observations are
based on opinions
not important
based on facts
do NOT rely on senses
9
What should they do to improve their investigation?
Each should increase number of times they hit ball to increase repetition
Each friend should use third grip on bat to increase the data
1 friend should same baseball and bat to limit test variables to one
One friend should use another's baseball and bat to increase replication
10
How many variables should be tested at one time in a scientific investigation?
three
one
two
as many as possible
11
A scientific inference...
...involves yeast and sugar.
...is an interpretation of data that lets you make your conclusion.
...is only done in junior high.
...is a descriptive statement of what you see or measure.
12
Jea wonders if temp affects behavior of fish. She has 4 bowls of fish. Which of following demonstrates correct setup?
Experiment C
Experiment A
Experiment B
Experiment D
13
If Rodney graphed his data, which of the following graphs would best represent his data?
Graph A
Graph B
Graph D
Graph C
14
What error did Jose make?
Jose’s plan has too many control variables.
Jose’s plan has more than one test variable (independent variable).
Jose’s plan does not have an outcome variable (dependent variable).
Jose’s plan does not have a hypothesis.
15
How many independent variables should be tested at one time in a scientific investigation?
one
three
two
as many as possible
16
Which statement best explains why a scientist would come up with a new hypothesis after completing an investigation?
provide more evidence that will support the scientists' claims.
replace the original hypothesis so data that was gathered supports it.
address any new questions that come up after completing the investigation.
test new variables and find data that will prove the hypothesis is correct.
17
The last step in the scientific method is ________________.
Communicate and Repeat Experiment
Make an Observation
Experiment
Analyze Data
18
The steps of the scientific method..
often start with a question.
always results in the development of a theory.
must always be used in the same order.
must all be used in every scientific investigation.
19
What is the "scientific method"?
An organized way of questioning, seeing, and answering.
A series of steps with a set order of use
A set series of steps used by scientists only
none of these
20
Which month should Jesenia recommend for her family to visit?
June
May
October
April
21
Scientific variables are...
the same in every experiment
independent and dependent
controls and constants
independent, dependent, and controls
22
The first step of the scientific method
conclusion
research
make an observation
solve the problem
23
Look at this picture, what is a scientific observation?
The horse is black
The horse has a tail
The horse weighs too much
The horse is eating
24
Which of the following is a characteristic of a scientific investigation?
record accurate data and observations
working with other scientists
changing the hypothesis to match the data
using expensive scientific equipment
25
What is a scientific theory?
A untested explanation of "what would happen if...
An educated guess.
A "rule" based on observation that the universe follows.
well-substantiated explanation of the natural world thta explains why
26
Type of plants; tap water control variables. Which of following conclusions best supported the data Marcus collected?
Lemon juice decrease plant growth; resulted in greatest average growth
Lemon juice increase plant growth; resulted in the least average growth
Sparkling water increase plant growth; resulted in greatest average growth
Sparkling water decrease plant growth; resulted in least average growth

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