Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 64 · 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.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
3. 3.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the triangle (c) the square (d) the heart shape
4. 4.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
5. 5.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of coins (c) the gap between books (d) coins it holds
7. 7.True or false: a magnet is needed for the paper bridge. (a) True (b) False
8. 8.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) two books (d) a mirror
9. 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of paper (c) coins it holds
10. 10.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
11. 11.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a round pillar (c) an electric tower (d) a hollow bird bone
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) turmeric powder (d) coins
13. 13.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a torn flat sheet (c) paper with folded edges (d) rolled paper tubes
14. 14.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) one flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
15. 15.🏗️ Where does a round pillar get its strength from? (a) tubes (b) arches and domes (c) triangles
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a balloon (c) sheets of paper (d) coins
17. 17.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) the same number of (d) more
18. 18.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds are magnetic (d) folds make it stiffer
19. 19.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) wash your hands (d) skip washing
20. 20.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.True or false: an electric tower gets its strength from triangles. (a) True (b) False
22. 22.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) where coins are placed (b) coins it holds (c) the shape of the paper
23. 23.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
24. 24.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
25. 25.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) a flat tissue (b) a U-shaped channel (c) a zigzag-folded sheet (d) rolled paper tubes
28. 28.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is magnetic (d) it is very hot
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
30. 30.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) more coins (d) fewer coins
31. 31.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) a flat tissue (d) a U-shaped channel
33. 33.True or false: a mirror is needed for the paper bridge. (a) False (b) True
34. 34.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
35. 35.⚖️ 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
36. 36.🧺 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 mirror
37. 37.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
38. 38.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
39. 39.🔍 Which is the odd one out? (a) a wet flat sheet (b) paper with folded edges (c) a flat tissue (d) a torn flat sheet
40. 40.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) rolled paper tubes

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