Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 45 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) yeast (d) coins
2. 2.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
3. 3.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
4. 4.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) an old stone bridge (c) a bamboo pole (d) a roof frame
5. 5.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a mirror (c) two books (d) coins
6. 6.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
7. 7.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) lick your fingers (d) wash your hands
8. 8.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a flat tissue (c) a wet flat sheet (d) a torn flat sheet
9. 9.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a roof frame (c) a round pillar (d) an eggshell
10. 10.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
11. 11.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
12. 12.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
13. 13.True or false: two books is needed for the paper bridge. (a) True (b) False
14. 14.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) a U-shaped channel
15. 15.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
16. 16.True or false: yeast is needed for the paper bridge. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) a wet flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) rolled paper tubes
18. 18.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a flat tissue (c) a U-shaped channel (d) a zigzag-folded sheet
19. 19.⚖️ 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
20. 20.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds make it stiffer (d) folds add glue
21. 21.True or false: a mirror is needed for the paper bridge. (a) True (b) False
22. 22.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
23. 23.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) a torn flat sheet (c) one flat sheet (d) a wet flat sheet
24. 24.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a balloon (c) coins (d) two books
25. 25.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
26. 26.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) it is magnetic (d) its curved arch shape
27. 27.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the gap between books (c) coins it holds
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
29. 29.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
30. 30.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
31. 31.True or false: a bridge truss gets its strength from a tube shape. (a) False (b) True
32. 32.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) turmeric powder (c) a ruler (d) coins
34. 34.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) False (b) True
36. 36.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) a zigzag-folded sheet
37. 37.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the kind of coins (c) the shape of the paper (d) the gap between books
38. 38.True or false: a ruler is needed for the paper bridge. (a) False (b) True
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) two books (d) a magnet
40. 40.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) coins (c) a balloon (d) a battery cell

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