Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 216 · 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.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
2. 2.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds are magnetic (d) folds add glue
3. 3.True or false: yeast is needed for the paper bridge. (a) False (b) True
4. 4.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) two books (c) a balloon (d) a mirror
5. 5.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
6. 6.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
7. 7.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a bamboo pole (c) an eggshell (d) an electric tower
8. 8.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
9. 9.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it sags and falls (d) it floats up
10. 10.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a balloon (d) a ruler
12. 12.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) yeast (c) a ruler (d) sheets of paper
14. 14.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a battery cell (c) sheets of paper (d) coins
15. 15.⚖️ 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
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) turmeric powder
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
19. 19.True or false: coins is needed for the paper bridge. (a) False (b) True
20. 20.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
21. 21.⚖️ 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) the kind of coins
22. 22.⚖️ 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 measure it (c) we change it
23. 23.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
24. 24.True or false: two books is needed for the paper bridge. (a) False (b) True
25. 25.🛟 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
26. 26.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
27. 27.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
28. 28.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a round pillar (c) a bridge truss (d) an electric tower
29. 29.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) an eggshell (c) a bridge truss (d) a temple dome
30. 30.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
31. 31.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
32. 32.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) turmeric powder (c) yeast (d) coins
33. 33.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
34. 34.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a torn flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
35. 35.True or false: a hollow bird bone gets its strength from arches or domes. (a) True (b) False
36. 36.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
37. 37.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) its curved arch shape (c) it is made of steel (d) it is magnetic
38. 38.🛟 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
39. 39.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.True or false: a bamboo pole gets its strength from arches or domes. (a) False (b) True

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