Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 447 · 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.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) rolled paper tubes (d) a wet flat sheet
2. 2.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
3. 3.⚖️ 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
4. 4.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a U-shaped channel (d) paper with folded edges
5. 5.True or false: coins is not needed for the paper bridge. (a) False (b) True
6. 6.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) arches and domes (c) triangles
7. 7.True or false: a bamboo pole gets its strength from triangles. (a) True (b) False
8. 8.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is magnetic (d) it is very hot
9. 9.True or false: a flat tissue makes a weak bridge. (a) True (b) False
10. 10.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
11. 11.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) a zigzag-folded sheet (d) rolled paper tubes
13. 13.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a U-shaped channel (c) a flat tissue (d) paper with folded edges
14. 14.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) low and steady (d) high and wobbly
15. 15.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
16. 16.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
17. 17.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
18. 18.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) skip washing (d) lick your fingers
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) the shape of the paper (c) coins it holds
20. 20.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) a battery cell (d) two books
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) a ruler (d) sheets of paper
22. 22.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) less (c) upward (d) not at all
23. 23.🔍 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
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) coins (d) a mirror
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) coins it holds (c) the shape of the paper (d) the kind of paper
26. 26.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
28. 28.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
30. 30.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
31. 31.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) coins (c) a battery cell (d) a magnet
33. 33.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) one flat sheet (c) a torn flat sheet (d) a flat tissue
34. 34.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a magnet (c) coins (d) sheets of paper
36. 36.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) a torn flat sheet (b) a zigzag-folded sheet (c) one flat sheet (d) a wet flat sheet
38. 38.🔍 Which is the odd one out? (a) a U-shaped channel (b) a wet flat sheet (c) rolled paper tubes (d) paper with folded edges
39. 39.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
40. 40.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more

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