Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 518 · 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.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
2. 2.🌉 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
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) the gap between books (c) the kind of paper (d) the kind of coins
5. 5.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) wash your hands (d) skip washing
6. 6.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes
7. 7.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) more coins (d) only water
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) yeast (d) a ruler
9. 9.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
10. 10.True or false: yeast is not needed for the paper bridge. (a) True (b) False
11. 11.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
12. 12.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) a wet flat sheet (d) one flat sheet
13. 13.⚖️ 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 measure it (c) we change it
14. 14.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a magnet
17. 17.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) coins (d) a mirror
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) coins it holds (c) the shape of the paper
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
21. 21.True or false: yeast is needed for the paper bridge. (a) True (b) False
22. 22.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) an old stone bridge (c) a bamboo pole (d) a roof frame
23. 23.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) paper with folded edges
24. 24.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) a battery cell
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the kind of coins (c) the kind of paper (d) coins it holds
27. 27.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) a ruler (d) a mirror
28. 28.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
29. 29.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
30. 30.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
31. 31.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) a zigzag-folded sheet (d) a flat tissue
32. 32.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
33. 33.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
34. 34.⚖️ 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 gap between books
35. 35.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) two books (c) coins (d) a ruler
37. 37.🏗️ Where does a roof frame get its strength from? (a) triangles (b) arches and domes (c) tubes
38. 38.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
39. 39.True or false: a bridge truss gets its strength from a tube shape. (a) False (b) True
40. 40.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) on a stool edge (d) low and steady

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