Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 399 · 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.🧺 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) a battery cell
2. 2.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
3. 3.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
4. 4.🏗️ Where does an eggshell get its strength from? (a) triangles (b) arches and domes (c) tubes
5. 5.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a balloon (c) sheets of paper (d) two books
6. 6.🌉 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 wet (d) folds make it stiffer
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) coins (d) a balloon
9. 9.True or false: two books is not needed for the paper bridge. (a) True (b) False
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) a magnet (d) two books
11. 11.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
12. 12.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
13. 13.True or false: an old stone bridge gets its strength from a tube shape. (a) True (b) False
14. 14.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) wash your hands (d) rub your eyes
15. 15.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a bridge truss (c) a round pillar (d) a temple dome
16. 16.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) more (d) upward
17. 17.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
18. 18.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a flat tissue (c) a wet flat sheet (d) one flat sheet
19. 19.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
20. 20.⚖️ 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
21. 21.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) fewer coins (d) the same coins
22. 22.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
23. 23.True or false: an eggshell gets its strength from triangles. (a) False (b) True
24. 24.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
25. 25.⚖️ 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
26. 26.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
27. 27.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
28. 28.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) zero (d) more
29. 29.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) a flat tissue (d) a U-shaped channel
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) yeast (c) two books (d) sheets of paper
32. 32.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
33. 33.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a magnet (c) a mirror (d) coins
34. 34.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a wet flat sheet (d) a U-shaped channel
35. 35.⚖️ 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
36. 36.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a hollow bird bone (c) a roof frame (d) a bridge truss
37. 37.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
40. 40.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a magnet (c) a balloon (d) a ruler

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