Qualitative Observations Descriptions of sights, sounds, smells and textures

Qualitative Observations

Descriptions of sights, sounds, smells and

textures.

Quantitative Observations

Descriptions using numbers and measurements.

InferenceConclusion based on evidence and observations.

International System (SI)

System of metric measurements.

Used by all scientists.

Based on multiples of 10.

Mass

The measure of the amount of matter in an object.

Volume

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

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

One paperclip has a mass of about one _______.

MeterBase metric unit for length.

Usually measured with a ruler.

LiterBase metric unit for volume.

Usually measured with a graduated cylinder.

HypothesisEducated guess.

Used to maketestable predictions.

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

Constants

The variables in an experiment that are kept the same.

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