Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 139 · 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? True or false: where coins are placed is the one thing we change. (a) True (b) False
2. 2.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) skip washing (d) rub your eyes
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we change it (c) we measure it
5. 5.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a balloon (d) sheets of paper
7. 7.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
8. 8.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a roof frame (c) a temple dome (d) an old stone bridge
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a magnet (c) sheets of paper (d) coins
10. 10.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) it is magnetic (d) its curved arch shape
12. 12.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) two books (c) a mirror (d) turmeric powder
13. 13.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an eggshell (c) a hollow bird bone (d) a bamboo pole
14. 14.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) two books (c) coins (d) a ruler
15. 15.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a wet flat sheet (c) paper with folded edges (d) a U-shaped channel
16. 16.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
17. 17.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
18. 18.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
19. 19.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) more (d) the same number of
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) two books (d) a mirror
21. 21.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
22. 22.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
23. 23.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) yeast (c) sheets of paper (d) a magnet
24. 24.🧺 Which of these is needed for the paper bridge? (a) yeast (b) coins (c) a magnet (d) a mirror
25. 25.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a round pillar (c) an old stone bridge (d) a roof frame
26. 26.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) one flat sheet (d) a zigzag-folded sheet
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
28. 28.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
29. 29.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
30. 30.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a zigzag-folded sheet (d) a flat tissue
31. 31.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the kind of coins (c) where coins are placed (d) the shape of the paper
33. 33.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
35. 35.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
36. 36.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) the same coins (d) fewer coins
37. 37.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) a ruler (d) sheets of paper
39. 39.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) low and steady (d) on top of a pet
40. 40.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the gap between books (c) where coins are placed (d) coins it holds

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