Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 546 · 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 two books for the paper bridge? (a) not needed (b) needed
2. 2.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
4. 4.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
5. 5.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
6. 6.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds make it wet (d) folds add glue
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
9. 9.⚖️ 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
10. 10.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on a stool edge (d) on top of a pet
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
12. 12.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) paper with folded edges (c) a flat tissue (d) one flat sheet
13. 13.True or false: coins is not needed for the paper bridge. (a) False (b) True
14. 14.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
15. 15.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of coins (c) the gap between books (d) the kind of paper
17. 17.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
18. 18.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
19. 19.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) a torn flat sheet (c) one flat sheet (d) a wet flat sheet
20. 20.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) turmeric powder (c) coins (d) a balloon
21. 21.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a mirror (c) sheets of paper (d) coins
23. 23.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
24. 24.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) lick your fingers (d) skip washing
26. 26.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) a flat tissue (d) a zigzag-folded sheet
27. 27.⚖️ 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
28. 28.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is magnetic (d) it is very hot
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) two books (d) turmeric powder
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) True (b) False
31. 31.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a round pillar (c) a roof frame (d) an old stone bridge
32. 32.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
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) where coins are placed (c) the shape of the paper (d) the gap between books
34. 34.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
35. 35.⚖️ 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
36. 36.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
37. 37.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
38. 38.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a wet flat sheet (d) a U-shaped channel
39. 39.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) turmeric powder (d) sheets of paper
40. 40.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False

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