Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 255 · 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 of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) one flat sheet
2. 2.True or false: a magnet is needed for the paper bridge. (a) True (b) False
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a mirror (d) a ruler
5. 5.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
6. 6.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) wash your hands (c) rub your eyes (d) lick your fingers
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
8. 8.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the heart shape (d) the triangle
9. 9.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) not at all (d) less
10. 10.⚖️ 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
11. 11.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
12. 12.⚖️ 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 change it (c) we measure it
13. 13.True or false: a mirror is needed for the paper bridge. (a) True (b) False
14. 14.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
15. 15.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a wet flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of paper (c) coins it holds
17. 17.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
18. 18.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is magnetic (c) its curved arch shape (d) it is very hot
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a magnet (d) two books
20. 20.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
23. 23.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
24. 24.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) where coins are placed (c) coins it holds (d) the shape of the paper
25. 25.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) the same number of (d) fewer
26. 26.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
27. 27.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a battery cell (c) two books (d) a mirror
28. 28.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) an old stone bridge (c) an electric tower (d) a temple dome
29. 29.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) where coins are placed (d) the kind of paper
30. 30.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) rolled paper tubes (c) one flat sheet (d) a flat tissue
31. 31.🔍 Which is the odd one out? (a) a flat tissue (b) a zigzag-folded sheet (c) paper with folded edges (d) rolled paper tubes
32. 32.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
33. 33.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
34. 34.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
35. 35.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
36. 36.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) coins (c) a ruler (d) two books
37. 37.⚖️ 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
38. 38.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
39. 39.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a flat tissue (c) a zigzag-folded sheet (d) rolled paper tubes
40. 40.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True

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