Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 358 · 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? What do we do with “the shape of the paper”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) a U-shaped channel (d) one flat sheet
3. 3.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) one flat sheet (c) a wet flat sheet (d) a torn flat sheet
4. 4.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
5. 5.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
6. 6.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
8. 8.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
10. 10.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
11. 11.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) where coins are placed (c) the shape of the paper (d) the kind of paper
13. 13.⚖️ 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
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) coins (d) two books
15. 15.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a roof frame (c) an old stone bridge (d) an electric tower
16. 16.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a zigzag-folded sheet (d) a flat tissue
17. 17.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins
18. 18.True or false: a bamboo pole gets its strength from arches or domes. (a) False (b) True
19. 19.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
21. 21.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
22. 22.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
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) a magnet (d) coins
25. 25.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) a flat tissue (d) a zigzag-folded sheet
26. 26.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) an eggshell (c) an electric tower (d) an old stone bridge
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
28. 28.🥚 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
29. 29.🧺 Which of these is needed for the paper bridge? (a) coins (b) a battery cell (c) a balloon (d) a mirror
30. 30.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) two books (d) a balloon
32. 32.⚖️ 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
33. 33.🛟 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
34. 34.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) two books (d) yeast
35. 35.🔺 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
36. 36.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) sheets of paper (d) a magnet
37. 37.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.True or false: an old stone bridge gets its strength from a tube shape. (a) True (b) False
39. 39.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
40. 40.🧺 Which of these is needed for the paper bridge? (a) yeast (b) sheets of paper (c) a magnet (d) a balloon

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