Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 822 · 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.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) rub your eyes (d) lick your fingers
2. 2.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a torn flat sheet (c) a U-shaped channel (d) rolled paper tubes
3. 3.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
4. 4.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) yeast (d) a ruler
5. 5.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of coins (c) coins it holds (d) the gap between books
6. 6.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
7. 7.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) fewer coins (d) only water
8. 8.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
9. 9.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) more (d) fewer
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
11. 11.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
12. 12.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) rolled paper tubes (c) paper with folded edges (d) a U-shaped channel
13. 13.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
14. 14.True or false: a roof frame gets its strength from triangles. (a) True (b) False
15. 15.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) a roof frame (c) an electric tower (d) a bridge truss
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) False (b) True
17. 17.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
18. 18.True or false: a hollow bird bone gets its strength from triangles. (a) False (b) True
19. 19.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
20. 20.🌉 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
21. 21.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it floats up (c) it gets stronger (d) it sags and falls
22. 22.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
23. 23.⚖️ 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
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) yeast (d) coins
25. 25.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
26. 26.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
27. 27.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
29. 29.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) a magnet (d) coins
30. 30.🔍 Which is the odd one out? (a) paper with folded edges (b) a flat tissue (c) a U-shaped channel (d) a zigzag-folded sheet
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we measure it (c) we change it
32. 32.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) a wet flat sheet (d) a flat tissue
33. 33.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) not at all (d) more
34. 34.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bridge truss (c) an eggshell (d) a hollow bird bone
35. 35.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a torn flat sheet
36. 36.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
37. 37.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) turmeric powder (d) coins
38. 38.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) sheets of paper (c) a balloon (d) a battery cell
39. 39.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of coins
40. 40.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge

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