Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 583 · 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.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a roof frame (c) a round pillar (d) a bridge truss
2. 2.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) its curved arch shape (d) it is magnetic
3. 3.True or false: a flat tissue makes a weak bridge. (a) False (b) True
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the kind of coins (c) coins it holds (d) the gap between books
5. 5.🔍 Which is the odd one out? (a) a flat tissue (b) a U-shaped channel (c) paper with folded edges (d) a zigzag-folded sheet
6. 6.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) a torn flat sheet
7. 7.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds make it wet (d) folds add glue
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a battery cell (c) a ruler (d) sheets of paper
9. 9.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) wash your hands (d) rub your eyes
10. 10.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a torn flat sheet (c) a wet flat sheet (d) one flat sheet
11. 11.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) not at all (d) more
12. 12.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
13. 13.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the square (d) the triangle
14. 14.True or false: two books is not needed for the paper bridge. (a) True (b) False
15. 15.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) a flat tissue (d) rolled paper tubes
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
17. 17.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a bamboo pole (c) a hollow bird bone (d) an eggshell
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a magnet (d) a ruler
19. 19.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an electric tower (c) a bamboo pole (d) a round pillar
20. 20.⚖️ 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
21. 21.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) zero (d) the same number of
22. 22.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
23. 23.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
24. 24.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
25. 25.🛟 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
26. 26.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) a balloon (d) two books
27. 27.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) where coins are placed (c) the gap between books (d) the shape of the paper
29. 29.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
30. 30.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the gap between books (c) the shape of the paper
33. 33.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) fewer coins (d) only water
34. 34.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
35. 35.🏗️ Where does a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
36. 36.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
37. 37.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) rolled paper tubes (c) a zigzag-folded sheet (d) a U-shaped channel
38. 38.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a mirror (d) coins
40. 40.True or false: yeast is not needed for the paper bridge. (a) False (b) True

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