Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 903 · 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? 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
2. 2.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
3. 3.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
4. 4.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) rub your eyes (d) wash your hands
5. 5.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) a wet flat sheet
6. 6.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a magnet (c) sheets of paper (d) a balloon
7. 7.⚖️ 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 measure it (c) we change it
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) a balloon (d) coins
9. 9.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) paper with folded edges (d) a torn flat sheet
10. 10.True or false: yeast is needed for the paper bridge. (a) True (b) False
11. 11.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bridge truss (c) an eggshell (d) a bamboo pole
12. 12.🔍 Which is the odd one out? (a) a flat tissue (b) rolled paper tubes (c) a torn flat sheet (d) a wet flat sheet
13. 13.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
14. 14.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a balloon (d) a ruler
15. 15.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
16. 16.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) a U-shaped channel (d) paper with folded edges
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a battery cell (c) sheets of paper (d) two books
18. 18.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) an electric tower (c) a temple dome (d) a round pillar
19. 19.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
20. 20.True or false: a round pillar gets its strength from triangles. (a) True (b) False
21. 21.True or false: coins is needed for the paper bridge. (a) True (b) False
22. 22.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
23. 23.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
24. 24.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) low and steady (d) on a stool edge
25. 25.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
26. 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) coins it holds (c) the kind of paper (d) where coins are placed
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) a magnet
28. 28.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a wet flat sheet (d) paper with folded edges
30. 30.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a round pillar (c) an old stone bridge (d) a hollow bird bone
31. 31.True or false: two books is needed for the paper bridge. (a) False (b) True
32. 32.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
33. 33.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
34. 34.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of coins (c) the shape of the paper
35. 35.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is made of steel (c) its curved arch shape (d) it is very hot
36. 36.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
37. 37.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) more (d) upward
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.True or false: an eggshell gets its strength from triangles. (a) True (b) False
40. 40.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) only water (d) the same coins

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