Define Engineering Problems

Grade 3 Science Worksheet - Building Confidence

Circle the answer.

1. 1.

   A bridge must hold 20 washers and use only paper and tape. What is the criterion, the goal it must meet?

   • use only paper and tape
   • be built by Friday
   • hold 20 washers
2. 2.

   A bridge must hold 20 washers and use only paper and tape. What is the constraint, the limit?

   • use only paper and tape
   • stay flat when loaded
   • hold 20 washers
3. 3.

   Which sentence names an engineering problem?

   • Our classroom has twenty desks.
   • Students need a way to keep cups from tipping on desks.
   • Cups come in many colors.
4. 4.

   Students get too hot in the sun at recess. What problem should a design solve?

   • making recess longer
   • giving students more swings
   • keeping students cool at recess
5. 5.

   Which is a constraint for a classroom tower challenge?

   • hold a small flag
   • stand at least 30 cm tall
   • use only 20 straws
6. 6.

   Which is a criterion for a classroom tower challenge?

   • stand at least 30 cm tall
   • use only 20 straws
   • be built in 15 minutes
7. 7.

   A garden path floods after storms. Which need should the design address?

   • move extra water away from the path
   • make the path longer
   • add more stones in the low spot
8. 8.

   An umbrella stand must hold an umbrella upright without tipping. What need does it solve?

   • making an umbrella open faster
   • keeping an umbrella from falling over
   • keeping an umbrella dry inside
9. 9.

   A greenhouse must keep plants warmer than the outside air in winter. What problem does it solve?

   • making plants grow without soil
   • protecting plants from the cold
   • keeping plants from needing water
10. 10.

    A backpack strap keeps hurting a student's shoulder. Which need should a new strap design address?

    • spread the weight so it does not hurt
    • make the zipper bigger
    • fit more books inside