Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 350 · 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.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🔍 Which is the odd one out? (a) a U-shaped channel (b) a torn flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
3. 3.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
4. 4.⚖️ 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
5. 5.🛟 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
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of coins (c) the gap between books (d) where coins are placed
7. 7.🌉 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
8. 8.True or false: yeast is not needed for the paper bridge. (a) True (b) False
9. 9.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
10. 10.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a hollow bird bone (c) a bamboo pole (d) a round pillar
11. 11.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) tubes (c) triangles
12. 12.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) a zigzag-folded sheet (d) one flat sheet
13. 13.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
14. 14.🔍 Which is the odd one out? (a) paper with folded edges (b) a flat tissue (c) rolled paper tubes (d) a U-shaped channel
15. 15.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
16. 16.True or false: a roof frame gets its strength from triangles. (a) True (b) False
17. 17.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
18. 18.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
19. 19.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
20. 20.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) the same coins (d) more coins
21. 21.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) an old stone bridge (c) a bridge truss (d) a round pillar
22. 22.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
23. 23.🥚 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
24. 24.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a magnet (c) a ruler (d) sheets of paper
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) coins (d) a mirror
27. 27.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
28. 28.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
30. 30.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) less (d) upward
31. 31.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
32. 32.⚖️ 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
33. 33.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
34. 34.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) an electric tower (c) a round pillar (d) a bridge truss
35. 35.True or false: an electric tower gets its strength from arches or domes. (a) True (b) False
36. 36.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
37. 37.🔍 Which is the odd one out? (a) one flat sheet (b) paper with folded edges (c) a U-shaped channel (d) rolled paper tubes
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) yeast (d) coins
39. 39.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a mirror (d) a ruler

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