What skill is a scientist using when she listens to the sounds that birds make?
Making observations
Forming a hypothesis
Interpreting data
Drawing conclusions
An educated guess or statement about what is going to happen is called a(n) _____.
Observation
Hypothesis
Problem
Controlled Variable
If I increase my vitamin C intake, then I will have fewer colds. What is a controlled variable?
Amount of times you come in contact with germs
Amount of vitamin C
Number of colds
When we gather information with our senses - taste, touch, smell, see, hear - it is called.
making observations
stating hypotheses
forming conclusions
performing experiments
Which of the follwoing is always an important part of an experiment?
identifying and cotrolling variables
making drawings of things observed
making a working model
observing things in nature
Scientific evidence is:
how people feel about things
supported by popular votes
data that supports your findings
what people like
Why do scientists collect data during an observation or investigation?
To make a graph
To do math
For the science fair
To answer a question about the world
The first step in the scientific method a scientist usually takes is to
create a hypothesis
gather evidence
create a testable question
create a conclusion
When we gather information using the 5 senses this is called....
stating a hypothesis
performing experiments
forming conclusions
making observations
Which is the best scientific question?
Which smart phone is the best?
Which smart phone works very well?
Which smart phone is the worst?
Which smart phone has the most internal memory?
Why do scientists repeat experiments several times?
to use up all their materials
to change the variable each time
to memorize the procedures
to make sure their results are accurate
Information or observations collected during an experiment are called _____.
Conclusion
Data/Results
Hypothesis
Problem
The variable that is kept the same through the experiment is called a(n) _____.
Independent Variable
Controlled Variable
Dependent Variable
Hypothesis
What is the difference between the people who like cats and goldfish?
8
2
5
4
The variable that is measured in an experiment is known as which of the following?
Dependent variable
Independent variable
Experimental variable
Controlled variable
When you write down or record what is happening in your experiment it is called
a hypothesis
a conclusion
an experiment
an observation
Interpretting data: In the graph below what is the 2nd most popular sport in the school
basketball
soccer
other
softball
Which would you do first in a scientific investigation?
form a queston or probem
write a hypothesis
draw conclusions
organize data
Why do scientists publish the results of their experiments?
so that other scientists can see that they are working
to make money
so that publishers can print books on science
so that other scientists can learn from what they did
The third step in the scientific method is ....
conclusion
data
research
hypothesis
Which of the following would make the results of an experiment more reliable?
Repeated/Multiple trials
Change the hypothesis
Multiple variables
Changing the procedure
The question that is being tested is called a(n) _____.
Experiment
Hypothesis
Problem
Data/Results
What would happen if scientist didn't publish thier findings in journals?
They could get too famous
They would never be famous
People could steal thier work
Other scientists would not benefit from thier work.
How do experiments help scientist learn.
It helps them answer questions about the world
It helps them learn only if they make new discoveries.
It only helps if they get thier hypothesis right.
It helps them become famous
If I put my batteries in the fridge, they will last longer. What is the control group?
Batteries in the fridge getting cold
Batteries on the countertop at room temperature
Batteries in the oven getting warm
Making an interpretation from an observation is called a(n) _____.
Inference
Controlled Variable
Experiment
Hypothesis
If I floss more, then I will have fewer cavities. What is the independent variable?
Amount of flossing
Type of floss
Number of cavities
A controlled experiment...
tests multiple variables
Ussually only includes one trial
only tests one variable
does not add any variables to the tests
A variable can be controlled when:
When none of your test groups are the same.
When all your test groups are the same.
You compare a normal group to a group you are testing on.
When you make constant chages to the groups.
The final summary of the data and results is/are called a(n) _____.
Experiment
Inference
Conclusion
Hypothesis
Scientists share thier findings to....
kep their work secret
so they don't have to repeat it
compete with each other
learn from each other
If I put on stronger sunscreen, then I will burn less. What is the dependent variable?
Strength of sunscreen
Severity of sunburn
Time spent in the sunlight
Which goes first in a scientific experiment?
data, tables and charts
question or problem
conclusion
hypothesis
A control group is used
as data
to compare a variable to
for multiple trials
as a conclusion
Does pipe material affect the temperature of flowing water? What is the dependent variable?
Water temperature
Pipe material
Diameter of the pipe
The process of testing a hypothesis under controlled conditions is called a(n) _____.
Data/Results
Experiment
Observation
Conclusion
(True or False): A hypothesis is made before an observation has taken place.
False
True