Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 836 · 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.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
2. 2.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) one flat sheet
3. 3.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
4. 4.True or false: yeast is not needed for the paper bridge. (a) False (b) True
5. 5.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) only water (d) more coins
6. 6.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a temple dome (c) a roof frame (d) a bridge truss
7. 7.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
8. 8.🏗️ Which of these gets its strength from arches or domes? (a) a temple dome (b) a roof frame (c) a bridge truss (d) an electric tower
9. 9.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
10. 10.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) sheets of paper (d) a mirror
11. 11.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) a battery cell (d) coins
12. 12.🧺 Which of these is needed for the paper bridge? (a) yeast (b) coins (c) a balloon (d) a mirror
13. 13.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
14. 14.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
15. 15.⚖️ 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
16. 16.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) a zigzag-folded sheet (d) rolled paper tubes
17. 17.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
18. 18.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) an electric tower (c) a hollow bird bone (d) an eggshell
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a mirror (d) coins
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a ruler (d) a magnet
21. 21.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a hollow bird bone (c) a bamboo pole (d) a temple dome
22. 22.True or false: a flat tissue makes a strong bridge. (a) True (b) False
23. 23.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) on a stool edge (d) high and wobbly
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) False (b) True
25. 25.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
26. 26.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it sags and falls (d) it turns to card
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
28. 28.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a U-shaped channel (c) a wet flat sheet (d) a torn flat sheet
29. 29.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
30. 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) the shape of the paper (c) coins it holds
31. 31.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
32. 32.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) upward (d) more
33. 33.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) skip washing (d) rub your eyes
34. 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the gap between books (c) the shape of the paper (d) the kind of coins
37. 37.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a torn flat sheet (c) a flat tissue (d) one flat sheet
38. 38.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
39. 39.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds add glue (d) folds make it wet
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True

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