Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 715 · 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 of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) coins (d) a balloon
2. 2.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) yeast (c) two books (d) coins
3. 3.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds make it wet (c) folds add glue (d) folds are magnetic
4. 4.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
5. 5.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) skip washing (d) wash your hands
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a magnet (d) a ruler
7. 7.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a flat tissue (d) a torn flat sheet
8. 8.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a bamboo pole (c) a hollow bird bone (d) an eggshell
9. 9.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a round pillar (c) a bamboo pole (d) a temple dome
10. 10.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a wet flat sheet (d) rolled paper tubes
14. 14.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
15. 15.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
16. 16.True or false: coins is needed for the paper bridge. (a) False (b) True
17. 17.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) fewer coins (d) only water
18. 18.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) rolled paper tubes (d) paper with folded edges
19. 19.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
20. 20.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) upward (d) more
21. 21.🔍 Which is the odd one out? (a) a U-shaped channel (b) one flat sheet (c) rolled paper tubes (d) paper with folded edges
22. 22.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) high and wobbly (d) low and steady
23. 23.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bamboo pole (c) an eggshell (d) a bridge truss
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) sheets of paper (c) coins (d) a ruler
25. 25.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
26. 26.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) zero (d) more
27. 27.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
28. 28.⚖️ 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
29. 29.🥚 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 magnetic (d) it is made of steel
30. 30.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
31. 31.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
32. 32.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
33. 33.🧺 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) yeast
34. 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
35. 35.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
36. 36.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) an old stone bridge (c) a bamboo pole (d) a temple dome
37. 37.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a balloon (d) a ruler
39. 39.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) where coins are placed (c) the shape of the paper (d) the kind of paper
40. 40.⚖️ 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

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