Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 482 · 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 bamboo pole gets its strength from arches or domes. (a) False (b) True
2. 2.True or false: a bridge truss gets its strength from a tube shape. (a) False (b) True
3. 3.True or false: a magnet is needed for the paper bridge. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) rolled paper tubes (d) one flat sheet
5. 5.🥚 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) it is magnetic (d) its curved arch shape
6. 6.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
7. 7.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
8. 8.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) upward (d) more
9. 9.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
10. 10.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) paper with folded edges (d) a wet flat sheet
11. 11.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) a wet flat sheet (d) rolled paper tubes
12. 12.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
13. 13.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
14. 14.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) a zigzag-folded sheet
15. 15.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds add glue (d) folds make it stiffer
16. 16.True or false: coins is needed for the paper bridge. (a) True (b) False
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) two books (c) a ruler (d) coins
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) yeast (d) sheets of paper
19. 19.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) only water (d) more coins
20. 20.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
21. 21.True or false: a mirror is needed for the paper bridge. (a) False (b) True
22. 22.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) a wet flat sheet (d) paper with folded edges
23. 23.True or false: two books is not needed for the paper bridge. (a) True (b) False
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
25. 25.True or false: two books is needed for the paper bridge. (a) True (b) False
26. 26.⚖️ 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
27. 27.True or false: a ruler is needed for the paper bridge. (a) False (b) True
28. 28.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it gets stronger (c) it sags and falls (d) it floats up
29. 29.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a battery cell (c) turmeric powder (d) a magnet
30. 30.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes
31. 31.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
32. 32.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a flat tissue (d) a zigzag-folded sheet
33. 33.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
34. 34.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) zero (d) more
35. 35.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a round pillar (c) an eggshell (d) an electric tower
36. 36.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a balloon (c) a magnet (d) coins
37. 37.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) turmeric powder (c) a battery cell (d) a ruler
38. 38.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
40. 40.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed

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