Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 480 · 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.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
2. 2.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a ruler (d) turmeric powder
3. 3.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) the shape of the paper (c) coins it holds
4. 4.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) a torn flat sheet (d) rolled paper tubes
5. 5.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.🥚 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) it is magnetic (d) its curved arch shape
7. 7.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
8. 8.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
9. 9.🛟 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
10. 10.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) paper with folded edges (d) a U-shaped channel
11. 11.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) a wet flat sheet (d) one flat sheet
12. 12.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) fewer (d) the same number of
13. 13.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a temple dome (c) a bamboo pole (d) an old stone bridge
14. 14.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) more coins (d) fewer coins
15. 15.🧺 Which of these is needed for the paper bridge? (a) two books (b) a mirror (c) a magnet (d) a battery cell
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the gap between books (c) the shape of the paper (d) coins it holds
17. 17.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) high and wobbly (d) on a stool edge
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) coins (d) turmeric powder
19. 19.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an electric tower (c) a hollow bird bone (d) a temple dome
20. 20.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
21. 21.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
22. 22.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) one flat sheet (d) a zigzag-folded sheet
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a magnet (d) sheets of paper
24. 24.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
25. 25.True or false: an old stone bridge gets its strength from triangles. (a) False (b) True
26. 26.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) upward (d) more
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a mirror (d) two books
28. 28.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) paper with folded edges (d) a flat tissue
29. 29.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes
30. 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the shape of the paper (c) the kind of paper (d) the gap between books
31. 31.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
32. 32.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
33. 33.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
34. 34.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) yeast (c) coins (d) a mirror
35. 35.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) coins (d) a ruler
38. 38.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
39. 39.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) yeast (c) sheets of paper (d) a magnet
40. 40.⚖️ 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

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