What's the difference between a hypothesis and a theory?

Theories have been confirmed from tests; hypotheses haven't

Which of the following is a testable hypothesis?

Plants need at least five hours of sunlight per day to grow.

If you ran an experiment to see the temp. at which beans sprout best, what is be the variable?

The temperature at which each bean is kept.

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BrainPop: Scientific Method

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scientific method

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Answers

1
What's the difference between a hypothesis and a theory?
Theories have been confirmed from tests; hypotheses haven't
Theories have many hypotheses; a hypothesis has one theory
"Theory" means "fact;" "Hypothesis" means "guess."
Hypotheses can't be proven; theories can
2
The scientific method is an analytic process to determine why things happen. Analytic means ...
Amazing
logical
Probable
Incoherent
3
Place the following in sequence: A) Recognize a problem B) Test a hypothesis C) Draw inferences
A, C, B
B, C, A
C, B, A
A, B, C
4
What must you do before you make a hypothesis?
Draw conclusions
Run an experiment
Form a theory
Make observations
5
Run an experiment several times to ensure your results are consistent. Consistent means ...
Unchanging
Obvious
Perfect
Testable
6
Which of the following is a testable hypothesis?
Roses are more beautiful than violets
Plants need at least five hours of sunlight per day to grow.
Humans will someday land on Mars.
Ice cream is delicious.
7
Evolution is a theory. Based on the scientific method, what can you say about this theory?
There is very little evidence to support it.
It's been tested many times.
No one is allowed to test whether it's true or not.
Scientists don't need to test it anymore.
8
What happens if you test a hypothesis many times and the data doesn't support your prediction?
Re-think your hypothesis
Change the data to support your prediction
Conclude that your hypothesis cannot be proven
Run the experiment until you get results you're looking for
9
If you ran an experiment to see the temp. at which beans sprout best, what is be the variable?
The height of the sprouts you grow.
The temperature at which each bean is kept.
The number of beans you plant.
The height of the sprouts you grow.
10
What might cause a theory to change over time?
Changes in public opinion
New but untestable ideas
New laws passed by the government
The discovery of new evidence

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