Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 94 · 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.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
2. 2.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
3. 3.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a round pillar (c) a bamboo pole (d) a bridge truss
4. 4.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds add glue (d) folds make it wet
5. 5.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) an old stone bridge (c) a temple dome (d) a bamboo pole
6. 6.🥚 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) it is magnetic (d) its curved arch shape
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
8. 8.True or false: coins is not needed for the paper bridge. (a) False (b) True
9. 9.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False
10. 10.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) two books (c) a ruler (d) sheets of paper
13. 13.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
14. 14.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) a zigzag-folded sheet (d) one flat sheet
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.True or false: a mirror is needed for the paper bridge. (a) True (b) False
17. 17.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a balloon (c) a magnet (d) yeast
18. 18.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) low and steady (d) on top of a pet
19. 19.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
20. 20.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) where coins are placed (c) the shape of the paper
21. 21.True or false: an old stone bridge gets its strength from a tube shape. (a) False (b) True
22. 22.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a wet flat sheet (d) a U-shaped channel
23. 23.⚖️ 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
24. 24.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) where coins are placed (d) the kind of coins
26. 26.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) two books (c) sheets of paper (d) a ruler
27. 27.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
28. 28.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
29. 29.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
30. 30.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we measure it (c) we change it
31. 31.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) triangles (c) tubes
32. 32.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
33. 33.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
34. 34.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
35. 35.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) lick your fingers (d) skip washing
36. 36.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
37. 37.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of coins (c) the shape of the paper
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True
40. 40.⚖️ 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 measure it (c) we keep it the same

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