Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 906 · 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.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
2. 2.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
3. 3.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
4. 4.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) a U-shaped channel (d) paper with folded edges
5. 5.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
6. 6.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) one flat sheet (c) a wet flat sheet (d) a flat tissue
7. 7.True or false: one flat sheet makes a strong bridge. (a) False (b) True
8. 8.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
9. 9.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) a mirror (d) sheets of paper
11. 11.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) more coins (d) the same coins
12. 12.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
13. 13.⚖️ 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 measure it (c) we keep it the same
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a magnet (d) coins
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a mirror (d) sheets of paper
16. 16.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
17. 17.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
18. 18.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) wash your hands (c) lick your fingers (d) rub your eyes
19. 19.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) less (d) upward
20. 20.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.⚖️ 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
22. 22.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) turmeric powder (c) two books (d) a battery cell
23. 23.🔺 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 triangle (d) the star
24. 24.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bridge truss (c) an eggshell (d) a hollow bird bone
25. 25.🥚 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
26. 26.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a U-shaped channel (c) a flat tissue (d) a wet flat sheet
27. 27.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
28. 28.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
29. 29.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
30. 30.⚖️ 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
31. 31.🏗️ Which of these gets its strength from arches or domes? (a) a temple dome (b) a round pillar (c) a hollow bird bone (d) a roof frame
32. 32.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
33. 33.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
35. 35.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a balloon (c) a battery cell (d) a ruler
36. 36.True or false: an electric tower gets its strength from arches or domes. (a) True (b) False
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
38. 38.True or false: an electric tower gets its strength from triangles. (a) False (b) True
39. 39.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the shape of the paper (c) the kind of coins (d) coins it holds
40. 40.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False

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