Define Engineering Problems
Grade 3 Science Worksheet

Circle the answer.
A pencil holder must be no wider than 6 inches. This one is 6 inches wide. Does it meet the size limit?
- no, because it must be smaller than 6 inches
- no, because it is exactly 6 inches wide
- yes, because it is not wider than 6 inches
- yes, because it holds many pencils
A birdhouse hole must be no more than 4 cm across, so squirrels cannot get in. This hole is 6 cm across. Does it meet the rule?
- no, because 6 cm is larger than the 4 cm limit
- yes, because bigger holes let more birds in
- no, because the hole is too small
- yes, because 6 cm is close to 4 cm
A kite challenge allows one sheet of paper and one stick. A student's kite uses two sheets and three sticks, and it flies steadily. Does it meet the requirements?
- no, because it flies too low
- no, because it uses more materials than allowed
- yes, because it flies steadily
- yes, because extra sticks make it stronger
A rule says a ramp may rise no more than 1 inch for every 12 inches of length. A ramp rises 1 inch for every 6 inches. Does it meet the rule?
- yes, because it still reaches the door
- yes, because it rises only 1 inch at a time
- no, because it is steeper than the rule allows
- no, because it is too flat
A ramp must send a marble at least 50 cm. In a test, the marble went 65 cm. Does the ramp meet the goal?
- no, because 65 cm is too far
- yes, because 65 cm is farther than 50 cm
- yes, because the ramp is tall
- no, because it must be exactly 50 cm
A paper airplane flies 2 meters, but the goal is 5 meters. What should the student do next?
- change the goal to 2 meters
- throw it the same way ten more times
- stop testing, since 2 meters is close
- redesign the plane and test it again
A parachute must make a toy fall slowly. Which test result shows the parachute works?
- the toy lands upside down
- the toy falls at the same speed either way
- the toy falls slower with the parachute than without it
- the parachute is the biggest in the class
A rain gutter must carry water away from a doorway. Which observation shows it is not working?
- the gutter is 10 feet long
- the gutter is made of metal
- water pools at the doorway during rain
- water flows away from the doorway
A foil boat must hold 10 pennies and use only one sheet of foil. Which is the constraint?
- use only one sheet of foil
- stay dry inside
- hold 10 pennies
- float for one minute
Why should a class list the criteria before building a solution?
- criteria are the materials allowed
- criteria show how to judge if the design works
- criteria replace testing
- criteria are added after building