The Scientific Method The Scientific Method and your science project.
Scientific method(br.)
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Transcript of Scientific method(br.)
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The Scientific Method involves a series of steps that are used to find an
answer to a problem.
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The steps of the scientific method.
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1)ObservationAH—Look at this!
Observe a problem or anything around you
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Example:
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Observe the skittles in front of you.
Record your observation.
Observation skittles 1 skittles 2 Color Dull Shiny
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2) QuestionDevelop a question or problem that can be solved through an experiment.
Q) Will?
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3) Research
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After you search the internet and the books for information
you find out that:
Lemon, vinegar and tomato sauce can be use to clean silver and
metal objects
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Can you guess an answer to your question?
After you made your research,
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3) HypothesisAn educated guess.
Lemon juice can be used to clean the dull coin.
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NOW, lets test whether our
hypothesis is right or wrong.
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4) ExperimentMake a test to test
whether the hypothesis is correct.
1)Put the coin in the lemon juice.2) Wait for 5 min. and record the results.
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5) Record results
Dull coin
After 5 min. in the lemon
juice
Shiny
In tables, graphs.
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6) ConclusionThe answer to the question (you state
whether your hypothesis was right or wrong)..
The lemon juice cleans the dull coin.
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Any experiment has
Variables
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WHAT ARE
Variables?
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Variables
Variables are things that
vary and change
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In any experiment there are 3 variables:
Things you
change
Things you
measure
Things you keep the same to
have a fair test
Let’s look at each type….
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Investigating how a weight affects the length of an elastic band.
You decide the weight to put.
You measure the length of the elastic band.
You use the same elastic band to have a fair test.
Example 1:
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Example 2:
Investigating how the rate of cooling of a beaker depends on the initial temperature.
You decide the initial temperature.
You measure the rate of cooling.
You use the same thermometer, same amount of liquid to have a fair test.
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Students of different ages were given the same jigsaw puzzle to put together. They were timed to see how long it took to finish the puzzle.
Example 3:
You decide the ages of students.
You measure the time they to finish the puzzle.
You use the same jigsaw puzzle to have a fair test.
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The higher the temperature of water, the faster an egg will boil.
Example 4:
You decide the temperature of the water.
You measure the time it took the egg to boil.
You use the same type of egg to have a fair test.
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The temperature of water was measured at different depths of a pond.
Example 5:
You decide the depth of the pond.
You measure the temperature of the water.
You use the same thermometer to have a fair test.