Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 198 · 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 yeast for the paper bridge? (a) not needed (b) needed
2. 2.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a magnet (c) a ruler (d) coins
3. 3.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) fewer coins (d) more coins
4. 4.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) a torn flat sheet (d) rolled paper tubes
5. 5.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
6. 6.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a balloon (c) sheets of paper (d) yeast
7. 7.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an electric tower (c) a round pillar (d) a temple dome
8. 8.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
9. 9.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) coins (d) turmeric powder
10. 10.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds make it stiffer (d) folds add glue
11. 11.🛟 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
12. 12.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
13. 13.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
14. 14.True or false: a mirror is needed for the paper bridge. (a) False (b) True
15. 15.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) a torn flat sheet (d) rolled paper tubes
17. 17.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) a U-shaped channel (d) one flat sheet
18. 18.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) rub your eyes (d) skip washing
19. 19.⚖️ 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
20. 20.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
22. 22.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the kind of paper (c) coins it holds (d) the gap between books
23. 23.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
24. 24.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
25. 25.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) yeast (d) a ruler
26. 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of coins
27. 27.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
28. 28.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bamboo pole (c) a temple dome (d) a bridge truss
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a mirror (c) two books (d) a ruler
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a balloon (d) two books
31. 31.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) rolled paper tubes (d) a flat tissue
32. 32.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is very hot (d) it is made of steel
33. 33.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a bridge truss (c) an eggshell (d) a round pillar
34. 34.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) one flat sheet (d) a wet flat sheet
35. 35.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it gets stronger (c) it turns to card (d) it floats up
36. 36.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) coins (d) two books
38. 38.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a temple dome (c) a hollow bird bone (d) a bridge truss
39. 39.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
40. 40.⚖️ 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

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