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STEM Mid-Term

Total questions: 98

Worksheet time: 1hrs 6mins

Name
Class
Date
1.

What step means to share your solution with others?

a)

Define the Problem

b)

Brainstorm

c)

Select the Plan

d)

Communicate

2.

Engineers realize that their prototype does not work after testing it several times. What must they do next?

a)

Make iterations or improvements

b)

Communicate the Design

c)

Select the Plan

d)

Test it more

3.

Engineers built a prototype of their design. What is the next step?

a)

Research

b)

Test

c)

Improve

d)

Communicate

4.

What is the study and collecting of information about something?

a)

Communicate

b)

Constraints

c)

Brainstorm

d)

Research

5.

According to the Engineering Design Process...

a)

You can do whatever you want

b)

You are always right

c)

You are always wrong

d)

Making mistakes is ok

6.

The process that is created to meet a need or solve a problem is the....

a)

Critical Thinking Process

b)

Scientific Method

c)

Engineering Design Process

d)

Mathematical Method

7.

What should you do after you Identify the Problem?

a)

Improve the Prototype

b)

Make a Prototype

c)

Research the Problem

d)

Test the Prototype

8.

Which step of the Engineering Design Process has you build a model based on a plan?

a)

Brainstorm

b)

Prototype

c)

Define the Problem

d)

Test

9.

In which step of the Engineering Design Process do you experiment with the prototype and collect data?

a)

Test

b)

Improve or Iterate

c)

Select the Plan

d)

Brainstorm

10.

What is the first step in the Engineering Design Process?

a)

Select the Plan

b)

Define the Problem

c)

Communicate

d)

Test

11.

If your design doesn't work, you must go back and improve your prototype. What step is this in the Engineering Design Process?

a)

Communicate

b)

Research

c)

Define the Problem

d)

Iterate

12.

What step of the Engineering Design Process do you talk about different ideas?

a)

Brainstorm

b)

Define the Problem

c)

Prototype

d)

Test

13.

What are the "criteria" in the Engineering Design Process?

a)

All the factors that will not work

b)

All the factors that make the solution expensive

c)

All the factors that limit the solution

d)

All the factors the solution must have

14.

What is a "constraint" in the Engineering Design Process?

a)

All the factors that make the solution harmful

b)

All the factors that make the solution expensive

c)

All the factors that limit a solution

d)

All the factors that make the solution better

15.

What is a prototype?

a)

Model

b)

Question

c)

Idea

d)

Research

16.

After you brainstorm all the possible solution to your problem, what is the next step?

a)

Define the Problem

b)

Communicate

c)

Select the Plan

d)

Prototype

17.

You can improve your prototype by

a)

Thinking about what worked well and what doesn't

b)

Share your prototype and get feedback from others

c)

Brainstorm ideas of how to fix the problems

d)

All of the above

18.

It is best to brainstorm by yourself so you can come up with a lot of great ideas and no one else helps you.

a)

True

b)

False

19.

You should only test your prototype one time to make sure it works correctly.

a)

True

b)

False

20.

The last step of the Engineering Design Process is

a)

Prototype

b)

Define the Problem

c)

Brainstorm

d)

Communicate

21.

What does the S in STEM stand for?

a)

Start

b)

Science

c)

Steam

d)

Stop

22.

What does the T in STEM stand for?

a)

Team

b)

Technology

c)

Tik

d)

Tok

23.

What does the E in STEM stand for?

a)

Engineering

b)

Electric

c)

Elementary

d)

Even

24.

What does the M in STEM stand for?

a)

Morning

b)

Maybe

c)

Map

d)

Math

25.

Engineers....

a)

investigate our NATURAL world

b)

Apply science & math to designs

c)

Create our DESIGNED world

d)

use math & symbols to SOLVE problems

26.

Humans need water

a)

True

b)

False

27.

Humans WANT basic shelter

a)

True

b)

False

28.

Humans need...

a)

Friends

b)

hundreds of friends

c)

nice car

d)

Fancy Food

29.

Engineers do not invent products, systems, or process that have never existed before

a)

True

b)

False

30.

Engineers innovate by improving an existing technological product, system, or method

a)

True

b)

False

31.

Engineers make our lives....

a)

better

b)

worse

c)

more complicated

d)

hard

32.

An agricultural engineer

a)

may find a cure for disease.

b)

may design a GPS for your vehicle.

c)

may evaluate the effects of global warming on food production

d)

create a robot to discover water on a planet.

33.

A pharmaceutical/chemical engineer....

a)

may evaluate the effects of global warming on food production.

b)

may build a computer the size of your watch.

c)

may evaluate the effects of global warming on food production

d)

may find a cure for disease.

34.

A computer engineer

a)

may find a cure for disease.

b)

may find a cure for disease.

c)

may build a computer the size of your watch.

d)

create a robot to discover water on a planet.

35.

A mechanical engineer may create a robot to discover water on a planet

a)

True

b)

False

36.

An electrical engineer may find a cure for a disease

a)

True

b)

False

37.

A new method, idea or product is an:

a)

initiative

b)

innovation

c)

apprenticeship

d)

none of these

38.

Following and studying a professional in order to learn a trade is an:

a)

apprenticeship

b)

bad idea

c)

guaranteed job

d)

high paying job

39.

First in a series of actions. The power or opportunity to act or take charge before others do.

a)

lazy

b)

last

c)

initiative

d)

follower

40.

There is only one kind of engineering. True or False?

a)

True

b)

False

41.

All of these are skills needed in Engineering, EXCEPT:

a)

Math

b)

Science

c)

Creativity

d)

Dependability

42.

Which of these are skills needed in Engineering?

a)

Problem Solving

b)

Public Speaking

c)

Analytical

d)

All of the above

43.

The application of technical knowledge to create solutions for real-world situations is :

a)

Manufacturing

b)

Engineering

c)

Both

d)

None of these

44.

Besides creating and designing new ideas, and engineer needs to do:

a)

Research and developing

b)

fix computers

c)

complete a puzzle

d)

win the game Among us

45.

A Civil Engineer must be able to communicate well. This is called:

a)

Singing

b)

Texting

c)

Public Speaking

d)

Talking to yourself

46.

Public speaking is having strong communication and having the ability to make presentations. This is also known as:

a)

Speech

b)

Vocabulary

c)

Communication

d)

All of the above

47.
Someone who wants to know how and why things work.  They also design and build things.
a)
scientist
b)
ME!
c)
Engineer
48.
A plan produced to show the workings of an object before it is built or made
a)
solution
b)
design
c)
prototype
d)
iterative process
49.
A simple machine that allows you to test your design.
a)
solution
b)
design
c)
prototype
d)
iterative process
50.
A process in which the steps are performed over and over again.
a)
solution
b)
design
c)
prototype
d)
iterative process
51.
Something designed of built to solve a problem.
a)
solution
b)
design
c)
prototype
d)
iterative process
52.
The following are all types of engineers:  civil, mechanical, electrical, chemical, nuclear, petroleum
a)
True
b)
False
53.
One of the three important questions engineers ask themselves is:  "When is lunch?"
a)
True
b)
False
54.
The Golden Gate Bridge is an example of something that was engineered.
a)
True
b)
False
55.
This type of engineer studies electricity and designs electrical systems.
a)
Electrical engineer
b)
Mechanical engineer
c)
Software engineer
d)
Aerospace engineer
56.
This type of engineer works in the manufacturing industry and designs tools, engines, and machines.
a)
Electrical engineer
b)
Mechanical engineer
c)
Software engineer
d)
Aerospace engineer
57.
This type of engineer designs computers and other products that use software to write programs.
a)
Electrical engineer
b)
Mechanical engineer
c)
Software engineer
d)
Aerospace engineer
58.
This type of engineer designs planes and spacecrafts.
a)
Electrical engineer
b)
Mechanical engineer
c)
Software engineer
d)
Aerospace engineer
59.

Which of the following is a key step in the scientific method?

a)

Ignoring data that doesn't fit your hypothesis

b)

Formulating a hypothesis

c)

Skipping the experiment if the hypothesis seems correct

d)

Publishing results without peer review

60.

What is the primary purpose of conducting an experiment in scientific research?

a)

To prove a hypothesis correct

b)

To gather data and test a hypothesis

c)

To make a hypothesis more complex

d)

To avoid peer review

61.

Which of the following best describes a control variable in an experiment?

a)

A variable that is changed to see its effect

b)

A variable that is kept constant to ensure a fair test

c)

A variable that is not measured

d)

A variable that is irrelevant to the experiment

62.

In engineering, what is the purpose of creating a prototype?

a)

To finalize the design

b)

To test and refine the design

c)

To sell the product

d)

To avoid further testing

63.

Which of the following is an example of a qualitative observation?

a)

The temperature is 25°C

b)

The solution turned blue

c)

The mass is 50 grams

d)

The length is 10 cm

64.

What is the role of peer review in scientific research?

a)

To ensure the research is kept secret

b)

To validate the research through evaluation by other experts

c)

To make the research more complex

d)

To avoid criticism

65.

Which of the following is a quantitative observation?

a)

The liquid is clear

b)

The plant grew 5 cm

c)

The metal is shiny

d)

The sound is loud

66.

What is the first step in the engineering design process?

a)

Building a prototype

b)

Identifying the problem

c)

Testing the solution

d)

Communicating the results

67.

Which of the following best describes a hypothesis?

a)

A proven fact

b)

An educated guess that can be tested

c)

A random guess

d)

A detailed experiment

68.

In an experiment, what is the independent variable?

a)

The variable that is measured

b)

The variable that is changed or controlled

c)

The variable that is kept constant

d)

The variable that is irrelevant

69.

What is the purpose of a scientific model?

a)

To provide a simplified representation of a complex system

b)

To replace experiments

c)

To avoid data collection

d)

To make the research more difficult

70.

Which of the following is an example of a scientific theory?

a)

The hypothesis that plants need sunlight to grow

b)

The theory of evolution by natural selection

c)

The guess that water boils at 100°C

d)

The idea that the Earth is flat

71.

In the context of scientific research, what does the term "data" refer to?

a)

Opinions of the researchers

b)

Information collected during an experiment

c)

The hypothesis being tested

d)

The conclusion of the experiment

72.

What is the main goal of the engineering design process?

a)

To create a perfect solution on the first try

b)

To develop and improve solutions to problems

c)

To avoid testing and prototyping

d)

To make the process as complex as possible

73.

Which of the following best describes an experiment?

a)

A detailed explanation of a phenomenon

b)

A test conducted to support or refute a hypothesis

c)

A random guess about a scientific question

d)

A summary of existing knowledge

74.

Which steps are important when designing and conducting a scientific experiment?

a)

Hide the results from fellow scientists.

b)

Identify the independent variable.

c)

Eliminate all dependent variables.

d)

Address any confounding variables.

e)

Form a non-falsifiable hypothesis.

75.

What is a scientific theory?

a)

a reasonable guess based on instinct

b)

an imaginative idea explaining natural phenomena

c)

a broad, evidence-based explanation for a phenomenon

d)

a tentative statement with little or no predictive power

76.

Hakeem is testing the effects of sunlight on samples of soil. Which of these actions would introduce confounding variables into Hakeem’s experiment?

a)

He tests a theory that’s already been established.

b)

He tests multiple hypotheses at a time.

c)

He uses identical specimens when completing multiple trials.

d)

He adjusts the independent variable and records the effects.

e)

He uses different types of soil in each of his samples.

77.

Why is this statement not a hypothesis?

Sunflowers require soil and plenty of sunlight and water to grow and thrive.

a)

It is a well-known fact.

b)

It is a proven theory.

c)

It is not falsifiable.

d)

It is difficult to test.

78.

When Raymond observes certain natural phenomena, he often forms ideas about their causes and effects. Suppose that Raymond surmises that leaves change color in autumn due to scarcity of sunlight. In order to test whether his idea is accurate, he must first construct a falsifiable ____________ that defines a clear relationship between two variables.

a)

theory

b)

law

c)

hypothesis

79.

After constructing a falsifiable hypothesis, Raymond’s next step is to ____________ that would isolate and test the relationship between the two variables.

a)

design an experiment

b)

complete mathematical calculations

c)

propose an explanation

80.

The task of designing an experiment can be pretty daunting because Raymond will need to identify and eliminate any __________ variables that could confuse test results.

a)

dependent

b)

confounding

c)

independent

81.

Madison lives near the ocean. She’s formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. If Madison plans to test this hypothesis, she will have to deal with which DEPENDENT VARIABLE in her experiment?

a)

air humidity

b)

air temperature

c)

amount of metal corrosion

82.

Madison lives near the ocean. She’s formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. If Madison plans to test this hypothesis, she will have to deal with which INDEPENDENT VARIABLE in her experiment?

a)

airborne salt concentrations

b)

volume of ocean water

c)

ocean water temperature

83.

Madison lives near the ocean. She’s formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. If Madison plans to test this hypothesis, she will have to deal with which ONE POSSIBLE CONFOUNDING VARIABLE in her experiment:

a)

color of nearby ocean waters

b)

airborne salt concentrations

c)

air temperature

84.

  • Aloe vera gel can heal wounds by boosting cell renewal.

a)

falsifiable

b)

non-falsifiable

85.

  • Aloe vera gel is the best natural skin moisturizer.

a)

falsifiable

b)

non-falsifiable

86.

  • Aloe vera juice tastes better than carrot juice.

a)

falsifiable

b)

non-falsifiable

87.

  • Drinking aloe juice can reduce the risk of lung cancer.

a)

falsifiable

b)

non-falsifiable

88.

Is this a hypothesis, theory, or law?

  • For any closed system, the mass of the system must remain constant over time.

a)

hypothesis

b)

theory

c)

law

89.

  • Is this a hypothesis, theory, or law?
    Higher air pressure causes fuel to burn at a faster rate.

a)

hypothesis

b)

theory

c)

law

90.

  • Is this a hypothesis, theory, or law?

  • Organisms have changed and diversified over time due to shifting frequencies of heritable traits by means of natural selection.

a)

hypothesis

b)

theory

c)

law

91.

  • Stars are formed from enormous clouds made mainly of hydrogen and helium.

a)

falsifiable

b)

non-falsifiable

92.

The twinkling of stars is an illusion that results from the stars' radiation passing through Earth's atmosphere

a)

falsifiable

b)

non-falsifiable

93.

Millions of shining stars make the night sky incredibly beautiful.

a)

falsifiable

b)

non-falsifiable

94.

  • The Sun is the most important star in the universe.

a)

falsifiable

b)

non-falsifiable

95.

Which step of the Scientific Method goes in the BLUE RECTANGLE at the top?

a)

The hypothesis is true.

b)

The hypothesis is false.

c)

Analyze the data.

d)

Construct a hypothesis.

96.

Which step of the Scientific Method goes in the PINK RECTANGLE?

a)

The hypothesis is true.

b)

The hypothesis is false.

c)

Analyze the data.

d)

Construct a hypothesis.

97.

Which step of the Scientific Method goes in the ORANGE RECTANGLE?

a)

The hypothesis is true.

b)

The hypothesis is false.

c)

Analyze the data.

d)

Construct a hypothesis.

98.

Which step of the Scientific Method goes in the PURPLE RECTANGLE?

a)

The hypothesis is true.

b)

The hypothesis is false.

c)

Analyze the data.

d)

Construct a hypothesis.

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