Nature of Science Test Review

1. How is a range of data determined?

• By taking the lowest amount in your data set and subtracting from it the highest amount.

• By determining the median and mode of a set of numbers

• By taking the highest amount in your data set and subtracting from it the lowest amount.

• By how high up the numbers go on the y axis

1. If the range of your data is 36 units, how high should the numbers go on your y axis?

• You must have 30 units on the y axis

• You must have units divided into 3's on the y axis

• You need to have at least 36 numbers on your y axis

• You need to have as many units as you do on the x axis

What information goes on the y- axis?

• The indedpendent variable. The factor that is manipulated or changed in order to test the effect of the change on another variable- in other words, the thing that "I" the scientist will change or test.

• The dependent variable. It is units of measurement for the data being gathered.

• Different categories to be tested

• Names of the people conducting the experiment

What are the necessary components to any data table or graph?

• Your name on the paper

• Different colors for each bar on the bar graph

• a line that connects both the y axis and the x axis

• a title, column headings, axis headings, units of measurement

Tags

NGSS.MS-PS3-1

Why do we use models?

• Building something by hand makes science more fun

• to represent things that are too small to see, or that are too large to see. They can be used to explain the past and predict the future.

• to determine the difference between the independent and dependet variable

• to encourage better peer review

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

1. List some different types of visual models:

• Weather maps, maps

• a globe

• a grid that shows percentages

• a 3D model of a human skeleton

What is an experiment?

• Observing carefully and recording movements of live animals

• Practice with chemicals and potions

• An organized procedure to study something under controlled conditions

• Building a model to demonstrate a theory

Tags

NGSS.MS-PS1-2

NGSS.MS-PS2-2

1. What are the steps of a scientific investigation in the correct order ?

• hypothesis, variables, observations, collect data, analyze, conclusions

• hypothesis, analyze, make observations, choose variables, conclusions

• Make observations, collect data, make a hypothesis, choose variables

• Analyze the question, collect data, choose variables, conclusions

List some reliable scientific sources

• ebay.com and amazon.com

• wikipedia.com , wikianswers

• government science agency, university websites

• ask a grown up that you know is knowledgeable

What are some unreliable scientific sources?

• a university webpage

• a government scientific agency

• a hospital website

• an advertisement promoting a product, personal webpages