Scientific Method
Types of Investigations
Data / Graphs
Miscellaneous
Vocabulary &
True/False
True/False
100
When a scientist has officially completed answering their questions, they are ready to conclude their data. A conclusion is ___________ _____________ with the world.
A conclusion is SHARING INFORMATION with the world.
100
What are the 3 types of scientific investigations?
-Experimental
-Observational
-Comparative
100
What kind of graph is this?
A bar graph
100
When scientists share knowledge, they help each other with scientific research. Why do scientists share knowledge?
A- New knowledge leads to new discoveries. New knowledge leads to new discoveries.
B-Scientists like to prove what they know. Scientists like to prove what they know.
C-Scientists like to prove each other wrong. Scientists like to prove each other wrong.
D-Research is boring unless you tell someone.
A-
New knowledge leads to new discoveries. New knowledge leads to new discoveries.
100
What is bias?
personal opinion
200
After testing your hypothesis, the next step you should be doing is...
Collecting your data
200
In an experimental investigation, the steps should be repeated and verified.
What does it mean when an experiment is "valid" ?
when an experiment is "valid", then
the experiment IS testing what it is supposed to test
200
At what temperature was there the most breathes per minute?
23 Degrees, Celsius
200
Which one of these would be considered an investigation?
A-Measuring the pH of common household chemicals. Measuring the pH of common household chemicals.
B-Observing the effects of different track surfaces on the speed of a go-cart. Observing the effects of different track surfaces on the speed of a go-cart.
C-Investigating the effects of different amounts of caffeine on heart rates of test subjects. Investigating the effects of different amounts of caffeine on heart rates of test subjects.
A-
Measuring the pH of common household chemicals. Measuring the pH of common household chemicals.
200
TRUE or FALSE:
an experiment can have more than two variables
TRUE
there can always be more than one Independent, Dependent, and Controlled Variable in an experiment
300
When performing a controlled experiment, how many variables are tested?
-0
-2
-1
-3
In a controlled experiment, only
(1)ONE VARIABLE is tested..(your independent vrbl)
the controlled variable stays unchanged, and the dependent variable is measured, not tested
300
An investigation where observations are made to study and relate two or more things
Comparative Investigation
300
From looking at this graph, what was the Independent variable? (changed)
The type of sport would be the Independent Variable
The type of sport is what is being changed
The number of people is the Dependent Variable
300
When an experiment is repeated and the new results are different from the original results what may likely be inferred?
Additional test/trials are needed.
300
What does it mean if an experiment IS replicable?
replicable means
can be repeated or tested multiple times by copying the same procedures as previously performed.
(THE EXPERIMENT CAN BE REPEATED)
400
When following the correct steps, a scientist will have to perform an experiment. In the experiment, what is the scientist testing?
The scientist is testing the hypothesis in the experiment.
400
What kind of investigation would be followed to answer this question?
"Does sitting closer to the door enhance test scores in school?"
Experimental Investigation
-this can be tested in a controlled setting
400
What are the Dependent Variable(s) according to this graph?
There a TWO variables being measured:
- Rainfall (mm)
- Temperature (Degrees, Celsius)
400
We all think, make observations, and infer. Scientific thought differs from how we think every day. In science, we try to avoid _______
OPINIONS
400
TRUE OR FALSE :
Some of the limitations towards an observational study are:
-Not real life
-All variables are controlled
-Human error
FALSE
limitations in an observational study are:
-Cannot be repeated or verified
-Only concludes possible associations with variables
-Researcher Bias
500
IN ORDER..
What are ALL of the steps of the Scientific Method?
1 Ask Question
2 Make Observations (background research)
3 Form a Hypothesis
4 Test Hypothesis
5 Collect Data (record results)
6 Conclusion (share)
500
What are the benefits to a Comparative Investigation?
-Identify patterns
-Understand the past
-Classification
-Can be used when experiments are not possible
500
Sam interviewed his classmates to see what the most hated vegetable is...
Create a graph based on the data from this table
answers vary
500
In an experiment for science class, six pepper plants grown in individual containers are separated into two groups. One group is placed in a room that gets sunlight, and the other group is placed in a dark room. All of the plants receive the same amount of water daily. After three weeks, the plants are observed.
Why were all the plants in the experiment pepper plants?
(answers may vary)
-The type of plant was not a tested variable
-The type of plant was controlled
-Only pepper plants were used
500
Qualitative Data is.....
Quantitative Data is.....
Qualitative data is information that is descriptive (quality) Ex/red, small, fast, short, stinky
Quantitative data is information that is numbered (quantity) Ex/ 1,2, 3, 4, 4