What is the purpose of identifying variables in engineering?

• To make the process more fun

• To control the outcome of a solution

• To complicate the design process

• To reduce the cost of materials

Which of the following is an example of a variable that cannot be controlled?

• The color of a ball

• The height from which a ball is dropped

• The force of gravity

• The angle of a slingshot

What was the goal of the game demonstrated in the video?

• To launch Catbot into a pile of marshmallows

• To build a bridge across a gorge

• To score a goal with a soccer ball

• To fly a kite

What is the outcome called in an engineering context?

• The result

• The variable

• The process

• The solution

Tags

CCSS.RL.4.3

CCSS.RL.5.3

CCSS.RL.6.3

CCSS.RL.6.6

CCSS.RL.7.6

What outcome does the narrator aim for in the marshmallow game?

• To collect the marshmallows

• To knock over some marshmallows

• To miss the pile completely

• To knock over all the marshmallows

What variable did the narrator first change in the game?

• The size of Catbot

• The strength of the slingshot

• The color of the marshmallows

• The angle of the slingshot

What happens if multiple variables are changed at the same time during an experiment?

• The cost of the experiment decreases

• It becomes difficult to determine the effect of each variable

• It is easier to understand the outcome

• The experiment becomes more fun

Why do engineers change only one variable at a time?

• To save time

• To make the experiment easier

• To clearly understand the effect of that variable

• To use fewer resources

What can engineers control in an experiment?

• The laws of physics

• All elements of nature

• Only the variables they identify

• The weather conditions

What is the effect of changing a variable in an engineering solution?

• It has no effect

• It can change the outcome

• It makes the solution cheaper

• It simplifies the problem