Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 514 · 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 a battery cell for the paper bridge? (a) not needed (b) needed
2. 2.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is very hot (c) its curved arch shape (d) it is made of steel
3. 3.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) paper with folded edges (d) one flat sheet
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.True or false: coins is not needed for the paper bridge. (a) True (b) False
6. 6.⚖️ 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
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.True or false: a balloon is needed for the paper bridge. (a) False (b) True
9. 9.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) two books (c) sheets of paper (d) a ruler
10. 10.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) low and steady (d) on a stool edge
11. 11.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) more (d) not at all
12. 12.⚖️ 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
13. 13.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
14. 14.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) wash your hands (c) lick your fingers (d) rub your eyes
15. 15.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a temple dome (c) a hollow bird bone (d) a bridge truss
16. 16.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) turmeric powder (c) a battery cell (d) two books
17. 17.⚖️ 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 keep it the same (c) we change it
18. 18.True or false: a flat tissue makes a strong bridge. (a) False (b) True
19. 19.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a round pillar (c) an old stone bridge (d) an eggshell
20. 20.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
21. 21.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) yeast (d) sheets of paper
22. 22.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) sheets of paper (c) a ruler (d) two books
23. 23.⚖️ 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 kind of coins (d) the shape of the paper
24. 24.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
26. 26.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
29. 29.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
30. 30.🔍 Which is the odd one out? (a) a U-shaped channel (b) a wet flat sheet (c) one flat sheet (d) a flat tissue
31. 31.True or false: one flat sheet makes a weak bridge. (a) False (b) True
32. 32.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) coins (d) a balloon
35. 35.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
37. 37.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) where coins are placed (b) coins it holds (c) the shape of the paper
38. 38.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) an eggshell (c) a bamboo pole (d) a bridge truss
39. 39.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.True or false: yeast is needed for the paper bridge. (a) True (b) False

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