Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 171 · 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.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a magnet (d) sheets of paper
3. 3.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) more (d) not at all
4. 4.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
5. 5.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
6. 6.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a torn flat sheet (d) one flat sheet
7. 7.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) zero (d) more
8. 8.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
9. 9.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an electric tower (c) a bamboo pole (d) a temple dome
10. 10.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) only water (d) the same coins
11. 11.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
12. 12.🥚 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
13. 13.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
14. 14.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a roof frame (c) a temple dome (d) a bamboo pole
15. 15.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) tubes (c) arches and domes
16. 16.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a torn flat sheet (d) a U-shaped channel
17. 17.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) low and steady (d) on a stool edge
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a mirror (d) sheets of paper
19. 19.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
20. 20.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
21. 21.⚖️ 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
22. 22.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) sheets of paper (c) turmeric powder (d) a mirror
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) where coins are placed (c) the gap between books (d) the kind of coins
24. 24.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) paper with folded edges (d) a torn flat sheet
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
26. 26.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
27. 27.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) a ruler (d) a battery cell
28. 28.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) sheets of paper (c) coins (d) a ruler
29. 29.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
30. 30.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
31. 31.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
32. 32.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a hollow bird bone (c) a bamboo pole (d) a bridge truss
33. 33.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
34. 34.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
35. 35.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a wet flat sheet (c) a torn flat sheet (d) one flat sheet
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) where coins are placed (c) the kind of paper (d) coins it holds
37. 37.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) sheets of paper (c) coins (d) two books
39. 39.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same

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