Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 397 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) sheets of paper (d) two books
2. 2.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) coins (c) a mirror (d) a battery cell
3. 3.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
4. 4.True or false: two books is not needed for the paper bridge. (a) False (b) True
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a mirror (c) a ruler (d) coins
6. 6.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a zigzag-folded sheet (d) a flat tissue
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) a ruler (c) sheets of paper (d) two books
8. 8.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) a wet flat sheet
9. 9.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the triangle (d) the heart shape
10. 10.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
11. 11.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) a U-shaped channel (d) one flat sheet
12. 12.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
13. 13.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
14. 14.⚖️ 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 coins (c) the shape of the paper (d) coins it holds
15. 15.True or false: a hollow bird bone gets its strength from arches or domes. (a) True (b) False
16. 16.🧺 Which of these is needed for the paper bridge? (a) two books (b) a battery cell (c) a magnet (d) a mirror
17. 17.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) on a stool edge (d) high and wobbly
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
19. 19.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
20. 20.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
21. 21.True or false: coins is not needed for the paper bridge. (a) False (b) True
22. 22.True or false: an electric tower gets its strength from arches or domes. (a) True (b) False
23. 23.True or false: two books is needed for the paper bridge. (a) True (b) False
24. 24.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it floats up (d) it sags and falls
25. 25.⚖️ 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
26. 26.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
29. 29.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) a wet flat sheet (d) a U-shaped channel
30. 30.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) skip washing (d) rub your eyes
31. 31.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) fewer coins (d) more coins
32. 32.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
33. 33.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
34. 34.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) more (d) the same number of
35. 35.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it wet (d) folds make it stiffer
36. 36.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
37. 37.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) more (d) less
38. 38.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a temple dome (c) an electric tower (d) a round pillar
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) sheets of paper (d) a balloon
40. 40.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the gap between books

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