Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 538 · 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.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers
2. 2.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a roof frame (c) a round pillar (d) an old stone bridge
3. 3.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) one flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
6. 6.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
7. 7.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an old stone bridge (c) a roof frame (d) an eggshell
8. 8.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a U-shaped channel (c) a torn flat sheet (d) paper with folded edges
9. 9.🥚 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) it is very hot (d) its curved arch shape
10. 10.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a temple dome (c) an eggshell (d) an electric tower
11. 11.True or false: a ruler is needed for the paper bridge. (a) True (b) False
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) a ruler (c) coins (d) sheets of paper
13. 13.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
14. 14.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a temple dome (c) a hollow bird bone (d) an electric tower
15. 15.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds make it wet (d) folds add glue
16. 16.⚖️ 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
17. 17.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) coins it holds (c) the shape of the paper (d) where coins are placed
19. 19.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
20. 20.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
21. 21.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
22. 22.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) a battery cell (d) coins
23. 23.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
24. 24.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
26. 26.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
27. 27.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) the kind of coins (c) the kind of paper (d) where coins are placed
28. 28.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the triangle (c) the star (d) the heart shape
29. 29.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
30. 30.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
31. 31.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) coins (c) a ruler (d) sheets of paper
33. 33.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins
34. 34.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) one flat sheet (d) a zigzag-folded sheet
35. 35.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) rolled paper tubes (d) a U-shaped channel
37. 37.🛟 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
38. 38.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
39. 39.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) a ruler (c) coins (d) two books

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