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Grade 3 Science Worksheet - Building Confidence

Circle the answer.

1. 1.

   The goal is a bridge that holds at least 18 washers. Use the graph. Which design meets the goal?

   • Design A
   • Design B
   • both designs
2. 2.

   Which measurement should decide which bridge holds the most weight?

   • how much each bridge weighs empty
   • how long each bridge took to build
   • how many washers each bridge held
3. 3.

   Which test lets two parachutes be compared fairly?

   • drop both from the same height
   • drop one indoors and one outside in wind
   • drop each from a different height
4. 4.

   A brace must use only cardboard. Which design meets this limit?

   • a metal rod
   • a folded cardboard brace
   • a wooden plank
5. 5.

   A test shows a ramp is too slippery for a toy car to grip. Which redesign fixes this?

   • add sandpaper to the ramp
   • make the ramp smoother
   • make the ramp steeper
6. 6.

   The goal is a paper airplane that flies at least 4 meters. Use the graph. Which design meets the goal?

   • neither design
   • Design B
   • Design A
7. 7.

   The goal is a foil boat that holds at least 12 pennies. Use the graph. Which design meets the goal?

   • Design B
   • both designs
   • Design A
8. 8.

   Tower A is 40 cm tall but falls when shaken. Tower B is 30 cm tall and stays up. The goal is a tower that stays standing. Which meets the goal?

   • Tower A
   • Tower B
   • both towers
9. 9.

   Which statement is based on a test result?

   • It was the most fun to build.
   • It held the most books without bending.
   • It looks the strongest.
10. 10.

    The goal is a kite that stays up at least 5 minutes. Use the graph. Which kites meet the goal?

    • Kite A only
    • both kites
    • Kite B only