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Grade 4 Science Worksheet - Challenge Me

Circle the answer.

1. 1.

   A class must choose one balloon car for a 4 m race. Car A: 4.2 m, 4.1 m, 4.3 m. Car B: 6 m, 3 m, 5 m. Which should they race, and why?

   • either, because both passed 4 m once
   • Car B, because it is faster on average
   • Car A, because it passes 4 m every time
   • Car B, because it once went 6 m
2. 2.

   A team compares towers by asking friends which looks coolest. Why is this a weak comparison?

   • looks are the main criterion
   • it does not test the towers against the criteria
   • friends cannot see towers
   • towers should never be compared
3. 3.

   A school must pick a sunshade. Shade 1 cools 8 degrees, costs $40. Shade 2 cools 6 degrees, costs $15. The goal is at least 5 degrees cooler for under $20. Which is best?

   • both shades
   • Shade 1
   • Shade 2
   • neither shade
4. 4.

   Goal: hold at least 6 books. Limit: 25 straws. Tower A: 8 books, 30 straws. Tower B: 7 books, 24 straws. Tower C: 4 books, 15 straws. Which tower is the best solution?

   • Tower C
   • Tower A
   • Tower B
   • none of them