Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 254 · 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.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) where coins are placed (c) coins it holds (d) the gap between books
2. 2.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a temple dome (c) an eggshell (d) an old stone bridge
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) coins (d) turmeric powder
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) tubes (c) arches and domes
7. 7.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) rolled paper tubes (d) a wet flat sheet
9. 9.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
10. 10.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
11. 11.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) coins it holds (c) the gap between books (d) the shape of the paper
13. 13.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) rolled paper tubes (d) a zigzag-folded sheet
14. 14.True or false: yeast is needed for the paper bridge. (a) True (b) False
15. 15.⚖️ 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
16. 16.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) a ruler (c) coins (d) two books
17. 17.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) rub your eyes (d) wash your hands
18. 18.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
19. 19.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) two books (d) a magnet
22. 22.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
23. 23.True or false: coins is not needed for the paper bridge. (a) True (b) False
24. 24.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the square (c) the heart shape (d) the star
25. 25.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) more coins (d) fewer coins
26. 26.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a round pillar (c) a hollow bird bone (d) a temple dome
27. 27.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a mirror (c) turmeric powder (d) a ruler
28. 28.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
29. 29.🥚 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
30. 30.🧺 Which of these is not needed for the paper bridge? (a) coins (b) yeast (c) sheets of paper (d) a ruler
31. 31.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
32. 32.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) a bridge truss (c) a temple dome (d) an eggshell
33. 33.🔮 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
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
35. 35.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) a torn flat sheet (d) rolled paper tubes
36. 36.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it sags and falls (c) it gets stronger (d) it floats up
37. 37.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bridge truss (c) an old stone bridge (d) a bamboo pole
38. 38.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) two books (c) a ruler (d) sheets of paper
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) yeast (c) sheets of paper (d) a ruler

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