Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 185 · 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.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of coins
3. 3.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) yeast (d) two books
5. 5.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a balloon (c) a ruler (d) a mirror
6. 6.🛟 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
7. 7.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) a wet flat sheet (d) rolled paper tubes
8. 8.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
9. 9.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) more (d) not at all
10. 10.⚖️ 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
11. 11.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
12. 12.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
13. 13.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a temple dome (c) an old stone bridge (d) an eggshell
14. 14.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) one flat sheet (d) a zigzag-folded sheet
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the gap between books (c) the shape of the paper (d) coins it holds
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the gap between books (c) the shape of the paper
17. 17.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
19. 19.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a flat tissue (d) rolled paper tubes
20. 20.True or false: coins is needed for the paper bridge. (a) False (b) True
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
22. 22.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
23. 23.True or false: one flat sheet makes a weak bridge. (a) False (b) True
24. 24.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) a flat tissue (d) a wet flat sheet
25. 25.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) paper with folded edges (d) one flat sheet
26. 26.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) its curved arch shape (d) it is magnetic
27. 27.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a temple dome (c) a round pillar (d) a bridge truss
28. 28.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a balloon (c) two books (d) turmeric powder
29. 29.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
30. 30.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the triangle (c) the heart shape (d) the square
31. 31.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
32. 32.True or false: a flat tissue makes a strong bridge. (a) True (b) False
33. 33.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
34. 34.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a balloon (d) two books
35. 35.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) a zigzag-folded sheet (d) a wet flat sheet
37. 37.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) tubes (c) triangles
38. 38.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a round pillar (c) an old stone bridge (d) a roof frame
39. 39.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a torn flat sheet (d) rolled paper tubes
40. 40.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) coins (c) yeast (d) a battery cell

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