Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 452 · 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.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) rolled paper tubes (d) a torn flat sheet
3. 3.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) wash your hands (d) skip washing
4. 4.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
5. 5.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) it is magnetic (d) its curved arch shape
6. 6.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) more (d) less
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
8. 8.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a ruler (c) a magnet (d) yeast
9. 9.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
10. 10.⚖️ 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 measure it (c) we change it
11. 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the kind of coins (c) the shape of the paper (d) where coins are placed
12. 12.True or false: two books is needed for the paper bridge. (a) False (b) True
13. 13.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
14. 14.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) coins it holds (c) where coins are placed (d) the kind of coins
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) two books (d) yeast
17. 17.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) paper with folded edges (d) a torn flat sheet
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) a mirror
19. 19.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
20. 20.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a magnet (c) sheets of paper (d) yeast
23. 23.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
24. 24.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
25. 25.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
26. 26.🛟 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
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
28. 28.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
29. 29.True or false: an old stone bridge gets its strength from a tube shape. (a) False (b) True
30. 30.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) more (d) fewer
31. 31.True or false: a ruler is needed for the paper bridge. (a) True (b) False
32. 32.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) sheets of paper (c) a ruler (d) two books
33. 33.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
34. 34.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
35. 35.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
36. 36.True or false: yeast is not needed for the paper bridge. (a) True (b) False
37. 37.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a round pillar (c) an electric tower (d) an old stone bridge
38. 38.True or false: two books is not needed for the paper bridge. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) a wet flat sheet (b) a torn flat sheet (c) one flat sheet (d) a U-shaped channel
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a magnet (c) a ruler (d) two books

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