Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 200 · 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.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
2. 2.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
3. 3.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) yeast (d) a ruler
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) coins (d) a ruler
6. 6.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) sheets of paper (d) a mirror
8. 8.⚖️ 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) the kind of coins (d) the shape of the paper
9. 9.🔍 Which is the odd one out? (a) a flat tissue (b) a U-shaped channel (c) one flat sheet (d) a wet flat sheet
10. 10.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the triangle (c) the star (d) the heart shape
11. 11.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
12. 12.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a round pillar (c) a hollow bird bone (d) a temple dome
13. 13.🌉 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
14. 14.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a bamboo pole (c) an eggshell (d) a hollow bird bone
15. 15.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) more (d) not at all
16. 16.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
17. 17.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a flat tissue (d) paper with folded edges
18. 18.True or false: yeast is not needed for the paper bridge. (a) False (b) True
19. 19.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a ruler (c) turmeric powder (d) a mirror
20. 20.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
22. 22.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the shape of the paper (c) where coins are placed (d) coins it holds
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a magnet (c) sheets of paper (d) coins
25. 25.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) only water (d) the same coins
26. 26.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is very hot (d) it is made of steel
27. 27.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
28. 28.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) fewer (d) zero
29. 29.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of coins
30. 30.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a wet flat sheet (c) a torn flat sheet (d) one flat sheet
31. 31.🛟 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
32. 32.True or false: a bamboo pole gets its strength from arches or domes. (a) True (b) False
33. 33.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
34. 34.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
35. 35.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) rolled paper tubes (d) a flat tissue
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) True (b) False
37. 37.True or false: an electric tower gets its strength from triangles. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) a wet flat sheet (b) rolled paper tubes (c) one flat sheet (d) a flat tissue
39. 39.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) a torn flat sheet (d) a flat tissue
40. 40.⚖️ 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

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