Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 472 · 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 a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
2. 2.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
3. 3.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a hollow bird bone (c) a round pillar (d) a bridge truss
4. 4.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) more (d) not at all
5. 5.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the shape of the paper (c) the kind of coins (d) coins it holds
6. 6.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
7. 7.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
8. 8.⚖️ 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
9. 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) coins it holds (c) the shape of the paper (d) the gap between books
10. 10.True or false: a flat tissue makes a strong bridge. (a) True (b) False
11. 11.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) two books (c) sheets of paper (d) a ruler
13. 13.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) zero (d) the same number of
14. 14.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
15. 15.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) two books (c) a battery cell (d) a balloon
16. 16.🥚 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
17. 17.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
18. 18.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of coins
20. 20.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) skip washing (d) lick your fingers
22. 22.True or false: yeast is needed for the paper bridge. (a) True (b) False
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
24. 24.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
25. 25.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) the same coins (d) fewer coins
26. 26.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) paper with folded edges (b) a flat tissue (c) a zigzag-folded sheet (d) a U-shaped channel
28. 28.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
29. 29.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) coins (d) yeast
30. 30.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) rolled paper tubes (c) a wet flat sheet (d) a flat tissue
31. 31.True or false: a bamboo pole gets its strength from triangles. (a) True (b) False
32. 32.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
33. 33.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.⚖️ 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
35. 35.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) low and steady (d) on a stool edge
36. 36.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) a magnet (d) sheets of paper
38. 38.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a battery cell (c) coins (d) sheets of paper

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