Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 424 · 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.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) paper with folded edges (d) a U-shaped channel
2. 2.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
3. 3.True or false: a round pillar gets its strength from triangles. (a) True (b) False
4. 4.⚖️ 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
5. 5.⚖️ 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
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds make it stiffer (d) folds are magnetic
8. 8.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
10. 10.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
11. 11.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) coins (c) a ruler (d) sheets of paper
13. 13.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins
14. 14.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) upward (d) less
15. 15.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
16. 16.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
17. 17.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) rub your eyes (d) wash your hands
18. 18.⚖️ 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
19. 19.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) one flat sheet
20. 20.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.⚖️ 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 change it (c) we measure it
22. 22.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
23. 23.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) False (b) True
26. 26.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a torn flat sheet (d) one flat sheet
27. 27.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) a mirror (d) coins
28. 28.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) sheets of paper (d) a magnet
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a battery cell (c) two books (d) coins
30. 30.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a hollow bird bone (c) a bridge truss (d) an eggshell
31. 31.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
33. 33.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the kind of coins (c) the shape of the paper (d) the gap between books
34. 34.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) a torn flat sheet (d) rolled paper tubes
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a ruler (d) turmeric powder
36. 36.True or false: a flat tissue makes a weak bridge. (a) False (b) True
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a magnet
38. 38.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is very hot (c) its curved arch shape (d) it is made of steel
39. 39.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) two books (d) a mirror
40. 40.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) the same number of (d) more

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