Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 653 · 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? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
4. 4.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a magnet (c) a battery cell (d) yeast
5. 5.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) fewer (d) the same number of
6. 6.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers
7. 7.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) coins it holds (c) where coins are placed (d) the shape of the paper
8. 8.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
9. 9.🥚 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 very hot (d) it is made of steel
10. 10.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
11. 11.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bridge truss (c) a temple dome (d) a hollow bird bone
12. 12.True or false: a bamboo pole gets its strength from arches or domes. (a) False (b) True
13. 13.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
14. 14.🔮 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
15. 15.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) a wet flat sheet (d) a zigzag-folded sheet
16. 16.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
17. 17.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
19. 19.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a U-shaped channel (d) a wet flat sheet
20. 20.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) an eggshell (c) a round pillar (d) a roof frame
21. 21.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
22. 22.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the star (d) the triangle
23. 23.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bamboo pole (c) an electric tower (d) a round pillar
24. 24.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
25. 25.True or false: two books is needed for the paper bridge. (a) False (b) True
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
27. 27.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it sags and falls (c) it turns to card (d) it gets stronger
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) turmeric powder (d) coins
29. 29.True or false: coins is not needed for the paper bridge. (a) False (b) True
30. 30.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) yeast (c) a ruler (d) coins
31. 31.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
32. 32.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) paper with folded edges
33. 33.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
34. 34.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
35. 35.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) True (b) False
37. 37.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an eggshell (c) an electric tower (d) a hollow bird bone
38. 38.⚖️ 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 measure it (c) we change it
39. 39.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
40. 40.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge

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