Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 82 · 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.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) a flat tissue (d) a zigzag-folded sheet
2. 2.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a ruler (c) a balloon (d) a magnet
3. 3.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) upward (d) less
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) coins it holds (c) where coins are placed (d) the shape of the paper
5. 5.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) a roof frame (c) an electric tower (d) a bamboo pole
6. 6.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
7. 7.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
8. 8.True or false: an electric tower gets its strength from triangles. (a) False (b) True
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) coins
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) where coins are placed (c) the gap between books (d) the kind of paper
11. 11.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) coins it holds (c) the shape of the paper
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) paper with folded edges (d) a wet flat sheet
15. 15.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) turmeric powder (d) sheets of paper
16. 16.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a round pillar (c) a bridge truss (d) a temple dome
17. 17.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) rolled paper tubes (d) a torn flat sheet
18. 18.True or false: coins is needed for the paper bridge. (a) True (b) False
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) two books (c) sheets of paper (d) a ruler
20. 20.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
21. 21.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on top of a pet (d) on a stool edge
22. 22.🧺 Which of these is needed for the paper bridge? (a) yeast (b) turmeric powder (c) a magnet (d) sheets of paper
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
24. 24.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
25. 25.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
26. 26.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a battery cell (d) two books
27. 27.True or false: an eggshell gets its strength from a tube shape. (a) False (b) True
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) two books (d) a ruler
29. 29.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a mirror (c) coins (d) a ruler
30. 30.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
31. 31.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
32. 32.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a magnet (c) two books (d) a mirror
33. 33.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
34. 34.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a bamboo pole (c) a roof frame (d) an eggshell
35. 35.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) lick your fingers (d) skip washing
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a ruler (d) a balloon
37. 37.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
38. 38.True or false: a roof frame gets its strength from triangles. (a) False (b) True
39. 39.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
40. 40.🥚 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

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