Working and Thinking Like Scientists and Engineers (7th)

This person searches for answers to questions to understand the world and obtain knowledge of why something is the way it is through observation, investigation and experimentation. Who is this person?

• Doctor

• Scientist

• Engineer

• Technologist

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What is the main reason scientists often work in teams?

• It is more fun to work in teams.

• It allows for a sharing of knowledge that helps to generate new ideas.

• It allows scientists to make sure that no one is stealing their inventions.

• It is hard to make other scientists believe a new idea unless a large group discovers it.

A group of engineers has developed four types of bicycles. They recorded data about tire strength. What would be a good way for engineers to communicate the results of their testing?

• data table showing pedal usage

• bar graph comparing the amount of wear and tear on the tires

• a measurement of the bicycles

  
  

• detailed drawings of each bicycle

 ____________ use discoveries in science to create products, processes, and tools that help benefit communities.

• engineers
• doctors

• scientist

• biologists

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Read the paragraph below: 

Africa is a continent with many natural resources and a fast-growing human population. Humans use surface resources, such as soil, water and wildlife, for daily living. In some areas of Africa, these surface resources are scarce due to use by humans. When an area loses surface resources, the humans living in that area must move to an area that has the resources they need. Some resources found beneath the surface of Earth are still plentiful. Resources found above and below the surface of Earth must be used wisely for future generations to survive. 

Which question best represents a problem that a scientist would investigate?

• What prototype would best mine the resources found below the Earth’s surface?

•  What process can be developed to use the resources that will benefit humans the most?

• How can we reinforce buildings in northern Africa to best withstand an earthquake?

• How much more efficient is aluminum than iron in building mining equipment in Africa?

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The bar graph below shows how much water a family uses per day for several purposes.

• 100 Liters

• 75 Liters

• 250 Liters

• 275 Liters

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When reading a graph, you should begin by looking at its _________ .

•  title

•  symbols

• vertical axis

• horizontal axis

Sally created an invention that makes opening jars easier for persons with arthritis. Sally is mostly functioning as a(n)?

• Teacher

• Engineer

• Scientist

• Researcher

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Why do engineers improve their designs?Engineers do not improve designs.

• Engineers use test results to create the most efficient products to solve problems.

• Engineers disregard the data collected since the product did not work.

• Engineers prefer to destroy the original designs.

• Engineers do not improve designs.

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A line graph shows the change in population in a city from 1910 to 1990. In 1910, the population was 25,000. In 1995, the population was 128,000. Which is true about the line graph?

• A pie graph can show the same information just as well.

• The horizontal axis is labeled “Years.”

• The plotted line is lower on the right end than on the left end.

•  You can compare the population in 1905 with the population in 1980.

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