Tools, Technology, and Measurement

Question 1 • *26-27 CFISD TX-Chemistry A CR

Check the boxes next to each sentence that describes some way a scientist might collect or organize data.

Answer

A marine biologist measures the lengths of the dorsal fins of a number of tigersharks.

A botanist, a scientist who studies plants, estimates the amount of oxygen a plant will produce during photosynthesis based on its size.

An ornithologist, a scientist who studies birds, draws a sketch showing thecolors of a bird’s plumage.

An ecologist uses a computer to make a graph of the measurements of the rings of a tree.

An entomologist, a scientist who studies insects, thinks of a possible explanation for the behavior of an insect.

Explanation

Measuring shark fin lengths collects numerical data, and sketching a bird’s plumage records observational data. Making a graph of tree-ring measurements organizes data that have already been collected. Estimating oxygen production and proposing an explanation for insect behavior are predictions or hypotheses, not ways of collecting or organizing data.

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