What is the first step in the scientific method?
Forming a hypothesis
Analyzing data
Asking a question
Drawing a conclusion
A hypothesis must be
complex
testable
always correct
proven true
What do scientists do after making observations?
publish results
create a graph
form a hypothesis
start over
What is the purpose of an experiment?
argue with other scientists
to prove opinions
to test a hypothesis
to write a book
What is the variable changed by the scientist?
dependent
independent
controlled group
experimental group
The factor that is measured in an experiment is called
independent variable
hypothesis
dependent variable
constant
What should you do if your hypothesis is not supported by the data?
change the data
start over again with a new question
ignore the results
revise your hypothesis
Which of these best describes a control group?
The group with the variable being tested
group that receives no experimental treatment
the group with the most changes
the group that changes the hypothesis
Why are repeated trials important in an experiment?
to waste time
to ensure results are reliable
to prove the scientist is right
to use more materials
Which is not a step of the scientific method?
ask a question
form a hypothesis
conduct an interview
analyze data
Data collected in an experiment is used to
create a hypothesis
make observations
draw a conclusion
write a question
Which of the following is a testable hypothesis?
cats are the best pets
music sounds nice
plants grow faster with sunlight
math is hard
A scientific theory is
a guess
a proven law
a well-tested explanation
a personal belief
Why must experiments be repeatable?
to keep students busy
to confirm the results are consistent
to make the experiment longer
to add more variables
In which step of the scientific method do you record what happened?
forming a hypothesis
analyzing data
observing and collecting data
communicating results
What does it mean to analyze data?
guess what the results mean
change the results
look for patterns or trends in the results
throw away bad results
Peer review is important because it
slows down the process
adds more opinions
allows copying of results
ensures the experiment was valid and reliable
What kind of graph is commonly used to display experimental data?
line graph
circle graph
flowchart
venn diagram
What is the last step in the scientific method?
forming a hypothesis
drawing a conclusion
collecting data
asking a new question
What is a constant in an experiment?
a variable that changes
A factor that stays the same
a type of graph
the outcome
Why is it important to control variables in an experiment?
To make it easier to write
to shorten the experiment
to confuse the reader
to ensure only one factor is tested
What can scientists do to communicate their results
keep them secret
tell only their friends
publish in journals or present findings
destroy their notes
Which of these statements about a hypothesis is TRUE?
it must be correct
it must be untestable
it's an educated guess
it's a fact
Which of these shows the correct order of steps in the scientific method?
Hypothesis β Conclusion β Question β Data
Question β Hypothesis β Experiment β Analyze Data β Conclusion
Experiment β Hypothesis β Question β Conclusion
Conclusion β Experiment β Hypothesis
What is the difference between a theory and a law?
A theory is proven, a law is not
a law describes what happens, a theory explains why
they are the same
a theory becomes a law over time