Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 145 · 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.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) coins it holds (c) the shape of the paper
2. 2.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a U-shaped channel (d) a torn flat sheet
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
4. 4.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
5. 5.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds are magnetic (d) folds make it wet
6. 6.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) fewer (d) zero
7. 7.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
8. 8.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) more coins (d) fewer coins
9. 9.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a U-shaped channel (d) a wet flat sheet
10. 10.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
11. 11.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) two books (d) a mirror
12. 12.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
13. 13.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) wash your hands (d) lick your fingers
14. 14.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) turmeric powder (c) two books (d) yeast
15. 15.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
17. 17.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the shape of the paper (c) the gap between books (d) coins it holds
18. 18.True or false: a roof frame gets its strength from triangles. (a) False (b) True
19. 19.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
20. 20.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
22. 22.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
23. 23.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) rolled paper tubes (c) a flat tissue (d) a torn flat sheet
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
25. 25.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
26. 26.⚖️ 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 change it (c) we measure it
27. 27.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a torn flat sheet (d) rolled paper tubes
28. 28.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) tubes (c) triangles
29. 29.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a torn flat sheet (d) paper with folded edges
30. 30.🛟 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
31. 31.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) coins it holds (c) the kind of coins (d) the kind of paper
33. 33.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
34. 34.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) turmeric powder (c) a balloon (d) sheets of paper
35. 35.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
36. 36.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
37. 37.🥚 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 very hot (d) it is made of steel
38. 38.True or false: one flat sheet makes a weak bridge. (a) False (b) True
39. 39.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) two books (d) a magnet
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a ruler (d) turmeric powder

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