Scientific Method Pretest
Which of the following is important when creating a graph in science.
all of these
Which of the following hypotheses is written correctly?
If I freeze a tennis ball, then it will not bounce as high.
The final part; a summary of reasonable inference is a/an
conclusion
All the things in an experiment that must be the same to make it fair are called
controlled variables or constants
In science, an educated guess is called a/an
hypothesis
In an experiment, the one variable that is changed is called the
independent variable
Which of the following is NOT a rule when writing a hypothesis?
it should restate the question
''Moby is watering his plant too much.'' Which step of the scientific method does this represent?
observation
''The leaves are brown and falling off and the soil is wet and squishy.'' Which step of the scientific method does this represent?
observation
The process of obtaining information by using the senses is called a/an
observation
''Why is Moby's plant dying despite being watered every day?'' Which step of the scientific method does this represent?
problem
What is the correct order of the steps in the scientific method.
Ask questions, make a hypothesis, test the hypothesis, analyze results, draw conclusions, communicate results.
Which question would be the best high level scientific question?
Does the amount of salt in water affect the temperature at which it boils?
What skill is a scientist using when she listens to the sounds that whales.
Making observations
A scientist who wants to study the affects of fertilizer on plants sets up an experiment. Plant A gets no fertilizer, Plant B gets 5 mg. Of fertilizer each day, and Plant C gets 10 mg. of each day. Which plant is the control group.
Plant A
What happens if you test a hypothesis many times and the data doesn't support your prediction?
Rethink your hypothesis
Which of the plants in Tim and Moby's experiment grew to be healthiest?
The one that was watered once a week
Is this a testable hypothesis? In digital cameras, Duracell batteries last longer than Energizer batteries.
Yes
An experiment that tests only one factor at a time by using a comparison of a control group and an experimental group is?
a controlled experiment
In an experiment, the factor that we measure is called the
dependent variable
When you decide whether or not the data supports the original hypothesis, you are
drawing conclusions
A conclusion reached on the basis of evidence and reasoning is a/an
experiment
A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact is a/an
experiment
What is another word for a test that usually has only one variable.
experiment
What do you call the procedure scientists use to help explain why things happen the way they do?
scientific method
a series of steps designed to help you solve problems and answer questions
scientific method
A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. In this experiment the independent variable is
the amount of salt in the water
Which of the following would be considered the variable in Tim and Moby's experiment?
the amount of water each fig tree would receive
A scientist hypothesizes the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable is
the gender of the baby alligators
A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. In this experiment the dependent variable is
the number of plants in the water
A series of steps followed to solve problems is
the scientific method
A scientist hypothesizes that the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is
the temperature
If lots and lots of experiments support the hypothesis then that hypothesis can eventually become a:
theory