Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 521 · 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) fewer coins (b) more coins (c) the same coins (d) only water
2. 2.True or false: a bamboo pole gets its strength from triangles. (a) True (b) False
3. 3.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
4. 4.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) sheets of paper (d) turmeric powder
7. 7.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
8. 8.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
9. 9.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) coins (d) a balloon
10. 10.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
11. 11.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
12. 12.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
13. 13.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) two books (d) a magnet
15. 15.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) wash your hands (d) skip washing
16. 16.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
17. 17.True or false: a magnet is needed for the paper bridge. (a) True (b) False
18. 18.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a temple dome (c) a bamboo pole (d) a bridge truss
19. 19.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
20. 20.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
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.🔍 Which is the odd one out? (a) a flat tissue (b) a U-shaped channel (c) a wet flat sheet (d) one flat sheet
23. 23.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) on a stool edge (d) high and wobbly
24. 24.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a wet flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
25. 25.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it stiffer (d) folds make it wet
26. 26.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) its curved arch shape (c) it is made of steel (d) it is magnetic
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) turmeric powder (c) coins (d) yeast
29. 29.⚖️ 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
30. 30.🧺 Which of these is needed for the paper bridge? (a) yeast (b) turmeric powder (c) a ruler (d) a balloon
31. 31.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
32. 32.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) more (d) zero
33. 33.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
35. 35.True or false: a round pillar gets its strength from triangles. (a) True (b) False
36. 36.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bridge truss (c) an eggshell (d) a bamboo pole
37. 37.⚖️ 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) the gap between books
38. 38.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a roof frame (c) an eggshell (d) a round pillar
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a balloon (d) sheets of paper
40. 40.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed

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