Design and Test a Solution

Grade 4 Science Worksheet

Circle the answer.

1. 1.

   A lunch box must keep a yogurt cold until noon. Which is the criterion?

   • the box has a picture on the lid
   • the box has a carrying handle
   • the box is painted green
   • the yogurt is still cold at noon
2. 2.

   A team has 30 minutes, 8 index cards and tape to build a bridge that spans 20 cm. Which is a criterion?

   • the bridge spans 20 cm
   • the team has 30 minutes
   • the team uses 8 index cards
   • the team uses only tape
3. 3.

   A team tests a paper cup phone. They cannot hear each other when the string is loose. What should they change?

   • pull the string tight
   • use a longer loose string
   • whisper more quietly
   • use smaller cups only
4. 4.

   Problem: a school's hallway gets muddy on rainy days. Which pair is one criterion and one constraint?

   • keeps mud off the hallway; costs under $40
   • is made of rubber; is red
   • keeps mud off the hallway; dries shoes fast
   • costs under $40; fits by the door