Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 703 · 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? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.True or false: two books is needed for the paper bridge. (a) True (b) False
3. 3.🌉 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
4. 4.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) high and wobbly (d) on a stool edge
5. 5.⚖️ 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 gap between books (c) coins it holds (d) the shape of the paper
6. 6.⚖️ 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 kind of paper (d) the gap between books
7. 7.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
8. 8.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) a torn flat sheet (d) rolled paper tubes
10. 10.⚖️ 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 gap between books
11. 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of coins
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) sheets of paper (d) a balloon
13. 13.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an old stone bridge (c) a bridge truss (d) a round pillar
14. 14.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
15. 15.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) a flat tissue (d) paper with folded edges
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) sheets of paper (d) yeast
18. 18.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
19. 19.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
20. 20.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) less (d) not at all
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
23. 23.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
24. 24.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
25. 25.True or false: a magnet is needed for the paper bridge. (a) True (b) False
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
27. 27.🔍 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 floats up (d) it sags and falls
28. 28.True or false: a flat tissue makes a strong bridge. (a) False (b) True
29. 29.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) more (d) zero
30. 30.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
31. 31.🧺 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
32. 32.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a battery cell (c) coins (d) turmeric powder
33. 33.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the heart shape (c) the star (d) the square
34. 34.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) fewer coins (d) the same coins
35. 35.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
36. 36.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) sheets of paper (d) a mirror
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
39. 39.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) a U-shaped channel (d) one flat sheet
40. 40.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) lick your fingers (d) skip washing

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