Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 523 · 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.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is made of steel (d) it is very hot
2. 2.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) a balloon (d) two books
3. 3.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
4. 4.⚖️ 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 paper
5. 5.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a U-shaped channel (c) a wet flat sheet (d) one flat sheet
6. 6.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a ruler (d) a magnet
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
8. 8.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) low and steady (d) high and wobbly
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) sheets of paper (c) a ruler (d) two books
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) two books (c) sheets of paper (d) coins
11. 11.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
12. 12.True or false: two books is not needed for the paper bridge. (a) False (b) True
13. 13.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a U-shaped channel (c) paper with folded edges (d) rolled paper tubes
14. 14.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
15. 15.🔮 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
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
18. 18.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
19. 19.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
20. 20.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a round pillar (c) a hollow bird bone (d) an old stone bridge
21. 21.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
22. 22.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an old stone bridge (c) a hollow bird bone (d) a bridge truss
23. 23.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
24. 24.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) yeast (c) a ruler (d) coins
26. 26.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) fewer coins (d) only water
29. 29.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) lick your fingers (d) rub your eyes
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a battery cell (d) coins
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the gap between books (c) coins it holds (d) the kind of paper
33. 33.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a magnet (c) a balloon (d) a battery cell
34. 34.⚖️ 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
35. 35.True or false: an old stone bridge gets its strength from triangles. (a) False (b) True
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) where coins are placed
37. 37.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
38. 38.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
39. 39.True or false: coins is needed for the paper bridge. (a) False (b) True
40. 40.🧺 Which of these is needed for the paper bridge? (a) yeast (b) turmeric powder (c) two books (d) a balloon

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