What's great about engineers?

• They fly hang gliders
• They build balloon air-lifts
• They solve all kinds of problems
• They knock down piles of marshmallows

Engineers always approach testing with _____

• a solution
• an evaluation
• a plan
• unknown variables

In the slingshot game, we decided that we could change one of two _____

• variables
• options
• criteria
• angles

When we changed the angle of the slingshot, we also  _____

• pulled a lot harder
• pulled a bit less
• pulled a bit harder
• didn't change how hard we pulled

In repeated trials, we should _____

• isolate both variables
• change both variables each time
• change only one variable at a time
• pull harder on the slingshot

When you choose one, and only one, variable to change, it's called _____

• removing a variable
• isolating a variable
• dividing a variable
• imprisoning a variable

Rules or tests that are used to judge something are called _____

• variables
• criteria
• options
• conditions

In the bowling game, knocking down the pins and doing it all in one turn were _____

• variables to isolate
• criteria for success
• variables to change
• problems to solve

In the bowling game the mass, the angle, and how hard we threw the ball were _____

• criteria we could change
• criteria for success
• variables we could change
• problems we could solve

To isolate a variable, we have to make sure that all of the other possible variables _____

• don't change too much
• stay the exact same
• decrease slightly
• increase slightly