Scientific Methods
What is the name for an organized way scientists answer questions and solve problems?
Scientific Methods
What is the variable that a scientist changes during an experiment called?
Independent Variable
What is a step-by-step instructions for completing a test.
A procedure
What tool organizes information into rows and columns?
A table
What do scientists call information, facts, and observations that help support a conclusion?
Evidence
What do scientists call a possible answer or prediction that can be tested?
Hypothesis
In the ball-bouncing experiment, what is the independent variable?
The surface
Why should scientists write clear procedures?
So other people can repeat the experiment.
Which type of graph uses rectangular bars to compare results?
A bar graph
A student notices that a tree has no leaves. Is this an observation or an inference?
Observation
Why should scientists repeat an experiment more than once?
To make it fair and to collect more data to see different patterns.
In the ball-bouncing experiment, what is the dependent variable?
The height of each bounce
What should scientists do if their results are different each time they repeat an experiment?
Look for things that may be different in their experiment or see what went wrong.
Which type of graph connects data points and is often used to show patterns over time?
Line graph
A student sees that a tree has no leaves and concludes that it lost them because it is fall. Is this an observation or an inference?
Inference
A student tests how high a ball bounces on wood, carpet, and a rubber mat. What is the student trying to investigate?
Which surface makes the ball bounce the highest
Why should a student drop the ball from the same height each time when testing different surfaces?
To make the experiment fair
Name one thing a scientist should record when testing how high a ball bounces.
the height of the bounce
Why should scientists give their tables and graphs clear titles and labels?
So a reader knows what they are looking at.
Why should a scientist use evidence instead of just an opinion when explaining experimental results?
Evidence supports a conclusion with facts and observations rather than an unsupported belief