Organizing data

What is not a data in science?

• Facts scientists gather as they conduct an investigation.

• Figures scientists gather as they conduct an investigation.

• Evidence scientists gather as they conduct an investigation.

• Opinions scientists gather as they conduct an investigation.

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NGSS.MS-PS1-2

Scientists need to ___________ their data.

Could you draw a table that represents the following investigation?


A medical research team wants to know the best amount of cardio exercises to improve the strength of the heart muscle.

The team subjected 30 men and women aged 70 to the same strenuous cardio fitness exercises for 10 minutes each day for two weeks. They increased the length of the exercise to 20 minutes. They added 10 minutes every two weeks.
At the end of each two weeks, they tested the subjects' heart stamina by having them pedal on a standing bike until their hearts reached 150 beats per minute.
The average results were: 8 minutes, 14 minutes, 22 minutes, 28 minutes, 29 minutes, 30 minutes, 24 minutes.

In question 3, which was the independent variable?

• There wasn't any.

• The length of time the subjects had to exercise.

• The results of the tests

In question 3, which was the dependent variable?

• There wasn't any.

• The length of time the subjects had to exercise.

• The results of the tests

Draw a scatter plot for the investigation in question 3.

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NGSS.MS-PS3-1

Explain how a tourist could use this table if he wanted to come to Pittsburgh to enjoy its numerous parks.

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NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

A historian is studying the effects of railroad constructions on the westward movement in the 1800's. The data show a steady increase of people moving west as the railroad adds branches and length.
Which graph would show his results?

• Linear graph

• Non linear graph.

An anthropologist analyzes the effect of the use of agriculture and breeding on previously nomadic people. Data show that the more crops were grown, Data show that when people learned to grow grains, the population increased by 10%. When people learned to grow grains and vegetables, the population increased by 15%. When people learned to grow grains, vegetables, and fruit, the population increased by 25%. When people learned to breed hens, in addition to agriculture, the population increased by 40%.
What type of graph could visually show this type of increase?

• Linear graph

• Curved graph

Tags

NGSS.MS-LS2-1

Write a complete definition of a model as it is used in science.

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NGSS.MS-ETS1-4

NGSS.MS-LS1-2

NGSS.MS-PS1-1