Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 250 · 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 what we measure. (a) True (b) False
2. 2.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a hollow bird bone (c) a bridge truss (d) an old stone bridge
3. 3.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
4. 4.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) on top of a pet (d) low and steady
5. 5.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) less (d) upward
6. 6.⚖️ 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
7. 7.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
8. 8.True or false: one flat sheet makes a strong bridge. (a) False (b) True
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) yeast (c) a ruler (d) coins
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) False (b) True
11. 11.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) the same coins (d) more coins
12. 12.🧺 Which of these is needed for the paper bridge? (a) coins (b) yeast (c) a balloon (d) a magnet
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) sheets of paper (c) a ruler (d) coins
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a magnet (d) coins
15. 15.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) two books (d) a battery cell
16. 16.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
17. 17.True or false: an old stone bridge gets its strength from triangles. (a) False (b) True
18. 18.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
19. 19.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
20. 20.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) tubes (c) triangles
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
22. 22.True or false: coins is not needed for the paper bridge. (a) True (b) False
23. 23.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) a wet flat sheet (d) a zigzag-folded sheet
24. 24.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) skip washing (d) wash your hands
25. 25.🔍 Which is the odd one out? (a) paper with folded edges (b) a flat tissue (c) rolled paper tubes (d) a U-shaped channel
26. 26.True or false: a roof frame gets its strength from arches or domes. (a) False (b) True
27. 27.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
28. 28.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) a bamboo pole (c) a roof frame (d) a round pillar
29. 29.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a ruler (c) a balloon (d) a battery cell
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
31. 31.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
32. 32.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
33. 33.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
34. 34.True or false: two books is needed for the paper bridge. (a) False (b) True
35. 35.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of paper (c) the shape of the paper
36. 36.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) rolled paper tubes (c) a wet flat sheet (d) a flat tissue
37. 37.🔍 Which is the odd one out? (a) a U-shaped channel (b) a torn flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the kind of coins (c) coins it holds (d) the kind of paper
39. 39.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is very hot (c) its curved arch shape (d) it is made of steel
40. 40.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) a wet flat sheet (d) a zigzag-folded sheet

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