Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 680 · 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.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) high and wobbly (d) low and steady
2. 2.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) its curved arch shape (d) it is made of steel
4. 4.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a round pillar (c) an old stone bridge (d) a bridge truss
5. 5.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) more coins (d) only water
6. 6.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) a flat tissue (d) a zigzag-folded sheet
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a magnet (c) sheets of paper (d) a ruler
9. 9.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
10. 10.🔍 Which is the odd one out? (a) a wet flat sheet (b) a torn flat sheet (c) one flat sheet (d) paper with folded edges
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) coins (d) a balloon
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) turmeric powder (c) two books (d) coins
13. 13.True or false: coins is not needed for the paper bridge. (a) False (b) True
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a battery cell (c) a ruler (d) two books
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a mirror
16. 16.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a hollow bird bone (c) a temple dome (d) a roof frame
17. 17.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the kind of paper (c) coins it holds (d) the gap between books
18. 18.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) turmeric powder (c) a balloon (d) a ruler
19. 19.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a temple dome (c) a bamboo pole (d) a bridge truss
20. 20.⚖️ 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
21. 21.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) fewer (d) zero
22. 22.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a battery cell (c) sheets of paper (d) a balloon
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True
24. 24.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
25. 25.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) rolled paper tubes (c) a flat tissue (d) one flat sheet
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) a wet flat sheet (b) a zigzag-folded sheet (c) one flat sheet (d) a torn flat sheet
28. 28.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
29. 29.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) where coins are placed (c) the gap between books (d) coins it holds
30. 30.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) one flat sheet (b) rolled paper tubes (c) a wet flat sheet (d) a torn flat sheet
34. 34.True or false: a temple dome gets its strength from triangles. (a) False (b) True
35. 35.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
36. 36.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) wash your hands (d) rub your eyes
37. 37.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds add glue (d) folds are magnetic
38. 38.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
39. 39.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
40. 40.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) rolled paper tubes

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