Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 356 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) turmeric powder (d) coins
2. 2.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds are magnetic (d) folds make it stiffer
3. 3.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
4. 4.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) the same coins (d) fewer coins
5. 5.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a hollow bird bone (c) a bridge truss (d) an eggshell
6. 6.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
7. 7.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a battery cell (c) a magnet (d) sheets of paper
8. 8.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
9. 9.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
10. 10.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the triangle (d) the square
11. 11.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
12. 12.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) on a stool edge (d) high and wobbly
13. 13.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a mirror (c) a balloon (d) a ruler
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a mirror
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
16. 16.🥚 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 magnetic (d) it is made of steel
17. 17.🛟 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
18. 18.🔍 Which is the odd one out? (a) rolled paper tubes (b) one flat sheet (c) a flat tissue (d) a wet flat sheet
19. 19.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) a wet flat sheet (d) a flat tissue
20. 20.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) coins (c) a ruler (d) sheets of paper
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a balloon (c) sheets of paper (d) a ruler
24. 24.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) an old stone bridge (c) a bridge truss (d) an eggshell
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) sheets of paper (d) a battery cell
29. 29.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
30. 30.True or false: coins is needed for the paper bridge. (a) True (b) False
31. 31.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) paper with folded edges (c) a flat tissue (d) a torn flat sheet
32. 32.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
33. 33.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) coins it holds (c) the shape of the paper (d) the gap between books
34. 34.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it sags and falls (c) it turns to card (d) it gets stronger
35. 35.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) more (d) zero
36. 36.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
37. 37.⚖️ 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
38. 38.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
39. 39.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a U-shaped channel (c) paper with folded edges (d) rolled paper tubes
40. 40.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge

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