Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 143 · 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: paper with folded edges makes a weak bridge. (a) False (b) True
2. 2.🏗️ 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 bamboo pole
3. 3.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) where coins are placed (c) coins it holds
4. 4.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
5. 5.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a torn flat sheet (c) paper with folded edges (d) a U-shaped channel
6. 6.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) the same coins (d) more coins
7. 7.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is made of steel (c) its curved arch shape (d) it is very hot
8. 8.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
9. 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) coins it holds (c) the shape of the paper (d) where coins are placed
10. 10.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a U-shaped channel (d) a flat tissue
11. 11.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
12. 12.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
13. 13.True or false: a ruler is needed for the paper bridge. (a) False (b) True
14. 14.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
15. 15.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) one flat sheet (d) rolled paper tubes
16. 16.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) two books (d) a battery cell
17. 17.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
18. 18.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it gets stronger (c) it floats up (d) it turns to card
19. 19.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a mirror (c) two books (d) coins
21. 21.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) high and wobbly (d) on a stool edge
22. 22.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
23. 23.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) a balloon (d) sheets of paper
24. 24.True or false: yeast is needed for the paper bridge. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) one flat sheet (d) paper with folded edges
26. 26.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
27. 27.🛟 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
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
29. 29.True or false: an electric tower gets its strength from triangles. (a) False (b) True
30. 30.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
31. 31.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) rolled paper tubes (d) a wet flat sheet
32. 32.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) an old stone bridge (c) a temple dome (d) a bamboo pole
33. 33.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
34. 34.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a magnet (c) yeast (d) coins
35. 35.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) the same number of (d) fewer
36. 36.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) upward (d) more
37. 37.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
38. 38.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) a ruler (c) coins (d) sheets of paper
39. 39.🔍 Which is the odd one out? (a) rolled paper tubes (b) a torn flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
40. 40.⚖️ 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

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