Qualitative Observations Descriptions of sights, sounds, smells and textures.

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Qualitative Observations Descriptions of sights, sounds, smells and textures.

Transcript of Qualitative Observations Descriptions of sights, sounds, smells and textures.

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Qualitative Observations

Descriptions of sights, sounds, smells and

textures.

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Quantitative Observations

Descriptions using numbers and measurements.

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InferenceConclusion based on evidence and observations.

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International System (SI)

System of metric measurements.

Used by all scientists.

Based on multiples of 10.

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Mass

The measure of the amount of matter in an object.

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Volume

The measure of the amount of space the object takes up.

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GramBase metric unit for mass. Usually measured with a triple beam balance.

One paperclip has a mass of about one _______.

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MeterBase metric unit for length.

Usually measured with a ruler.

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LiterBase metric unit for volume.

Usually measured with a graduated cylinder.

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HypothesisEducated guess.

Used to maketestable predictions.

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Independent Variable

The part of an experimentthat is changed so itcan be tested.(Only one.)

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Dependent Variable

The part of an experimentthat is measured to gather results.

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ControlThe part of the experiment where the independent variable isnot tested; used for comparison

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Constants

The variables in an experiment that are kept the same.

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