Scientific Thinking

Front

When do scientists use a correlation instead of an actual experiment? Options: when it is unethical to do the experiment, when it is too expensive to do the experiment, when it is too hard to do the experiment, all of the above

Back

all of the above

Front

Describe the experimental group.

Back

the group that gets the treatment

Front

What is the independent variable in Josie's experiment where she grew the same kind of tomatoes in the same soil and amount of water, sitting one in the sun and one in a closet for 14 days?

Back

sunlight

Front

Which of the following hypotheses is written correctly? Options:  If a tennis ball is frozen, it won't bounce as high as one that is not frozen., If I heat up a tennis ball it will bounce high.,  If I freeze a tennis ball, then it will not bounce as high., Frozen tennis balls will not bounce as high.

Back

If I freeze a tennis ball, then it will not bounce as high.

Front

In an experiment, the factor that we measure is called the

Back

dependent variable

Front

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

Back

the temperature

Front

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

Back

the gender of the baby alligators

Front

In which step of the scientific method do we want to use graphs? Options: communicate results, asking questions, analyze data, make a hypothesis

Back

analyze data

Front

Which plant is the control group in an experiment where Plant A gets no fertilizer, Plant B gets 5 mg. of fertilizer each day, and Plant C gets 10 mg. of fertilizer each day?

Back

Plant A

Front

A conclusion reached on the basis of evidence and reasoning is a/an

Back

inference