Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 960 · 40 questions

What you do (Shape makes strength): 1. Place two books 15 cm apart, low and steady. 2. Lay a flat sheet across and add coins one by one in the middle until it falls. 3. Fold the same kind of sheet into a zigzag and test it the same way. 4. Record the coins each shape holds, then wash your hands.

1. 1.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) fewer coins (d) only water
2. 2.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) rub your eyes (d) lick your fingers
3. 3.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the kind of paper (c) where coins are placed (d) coins it holds
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) sheets of paper (c) two books (d) a ruler
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
8. 8.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
9. 9.🔍 Which is the odd one out? (a) rolled paper tubes (b) a torn flat sheet (c) a zigzag-folded sheet (d) paper with folded edges
10. 10.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we measure it (c) we change it
11. 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) coins it holds (c) the shape of the paper
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) coins (d) two books
13. 13.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) one flat sheet (d) a zigzag-folded sheet
14. 14.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a temple dome (c) an eggshell (d) a bamboo pole
15. 15.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
17. 17.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) its curved arch shape (d) it is magnetic
18. 18.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a battery cell (c) sheets of paper (d) two books
20. 20.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
21. 21.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
22. 22.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
23. 23.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
24. 24.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) a balloon (c) a mirror (d) a magnet
25. 25.True or false: two books is needed for the paper bridge. (a) False (b) True
26. 26.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
27. 27.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
28. 28.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) arches and domes (c) triangles
29. 29.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) coins it holds (c) the gap between books (d) the shape of the paper
30. 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the gap between books
31. 31.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
32. 32.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
33. 33.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) one flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
34. 34.True or false: a flat tissue makes a strong bridge. (a) False (b) True
35. 35.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
36. 36.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) an eggshell (c) a roof frame (d) a hollow bird bone
37. 37.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) one flat sheet (d) paper with folded edges
38. 38.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) a flat tissue (d) a zigzag-folded sheet

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