Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 840 · 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 two books for the paper bridge? (a) not needed (b) needed
2. 2.True or false: a roof frame gets its strength from triangles. (a) False (b) True
3. 3.🔍 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
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.True or false: coins is needed for the paper bridge. (a) False (b) True
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
8. 8.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the gap between books (c) coins it holds
9. 9.True or false: a temple dome gets its strength from a tube shape. (a) True (b) False
10. 10.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
11. 11.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
12. 12.True or false: a flat tissue makes a strong bridge. (a) True (b) False
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) yeast (d) coins
14. 14.🔍 Which is the odd one out? (a) a flat tissue (b) a torn flat sheet (c) a wet flat sheet (d) a U-shaped channel
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the shape of the paper (c) the gap between books (d) the kind of paper
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) a balloon
17. 17.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds make it stiffer (d) folds add glue
18. 18.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
19. 19.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) a U-shaped channel (d) paper with folded edges
21. 21.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a battery cell (c) sheets of paper (d) coins
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
23. 23.⚖️ 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
24. 24.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
25. 25.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
26. 26.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
27. 27.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
28. 28.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) more coins (d) the same coins
29. 29.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) turmeric powder (d) a ruler
30. 30.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) a torn flat sheet (c) one flat sheet (d) a wet flat sheet
31. 31.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
32. 32.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a bridge truss (c) an electric tower (d) a round pillar
33. 33.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is made of steel (d) it is very hot
34. 34.True or false: a temple dome gets its strength from triangles. (a) False (b) True
35. 35.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) on top of a pet (d) high and wobbly
36. 36.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) rub your eyes (d) wash your hands
37. 37.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) coins (d) a balloon
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a magnet (c) sheets of paper (d) two books
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) where coins are placed (c) coins it holds
40. 40.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) paper with folded edges (c) a torn flat sheet (d) one flat sheet

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