Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 245 · 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 flat tissue makes a strong bridge. (a) False (b) True
2. 2.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) on top of a pet (d) low and steady
3. 3.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
4. 4.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
5. 5.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) two books (d) a balloon
6. 6.🔍 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
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) turmeric powder (d) sheets of paper
8. 8.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
9. 9.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
10. 10.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a flat tissue (d) paper with folded edges
11. 11.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
12. 12.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
13. 13.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
14. 14.True or false: two books is not needed for the paper bridge. (a) False (b) True
15. 15.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) rolled paper tubes (d) a wet flat sheet
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the shape of the paper (c) where coins are placed (d) coins it holds
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
19. 19.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
20. 20.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a U-shaped channel (c) a torn flat sheet (d) a wet flat sheet
21. 21.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
22. 22.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) fewer coins (d) the same coins
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a balloon (d) a ruler
24. 24.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
25. 25.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) one flat sheet (d) a U-shaped channel
26. 26.⚖️ 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
27. 27.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) wash your hands (d) rub your eyes
28. 28.True or false: two books is needed for the paper bridge. (a) True (b) False
29. 29.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) paper with folded edges (c) one flat sheet (d) a torn flat sheet
30. 30.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
31. 31.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) more (d) zero
32. 32.🧺 Which of these is needed for the paper bridge? (a) two books (b) a mirror (c) a battery cell (d) yeast
33. 33.⚖️ 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
34. 34.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
35. 35.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
36. 36.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
37. 37.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a battery cell (c) sheets of paper (d) coins
39. 39.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it stiffer (d) folds make it wet
40. 40.⚖️ 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 change it (c) we measure it

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