Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 408 · 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.True or false: one flat sheet makes a weak bridge. (a) True (b) False
2. 2.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it wet (d) folds make it stiffer
3. 3.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
4. 4.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) a U-shaped channel (d) a wet flat sheet
5. 5.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) a zigzag-folded sheet
6. 6.🔍 Which is the odd one out? (a) a torn flat sheet (b) a zigzag-folded sheet (c) paper with folded edges (d) rolled paper tubes
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
8. 8.⚖️ 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
9. 9.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a balloon (c) a ruler (d) two books
10. 10.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a battery cell (c) a mirror (d) a ruler
11. 11.⚖️ 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
12. 12.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) a wet flat sheet (d) rolled paper tubes
13. 13.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
14. 14.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) not at all (d) less
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the gap between books (c) where coins are placed (d) the shape of the paper
16. 16.True or false: a flat tissue makes a strong bridge. (a) True (b) False
17. 17.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
18. 18.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) a mirror (d) coins
19. 19.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the triangle (d) the square
20. 20.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) turmeric powder (c) a mirror (d) coins
21. 21.⚖️ 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
22. 22.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
24. 24.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
25. 25.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
26. 26.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
27. 27.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) skip washing (d) rub your eyes
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
29. 29.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) rolled paper tubes (c) a zigzag-folded sheet (d) paper with folded edges
30. 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the shape of the paper (c) the kind of paper (d) coins it holds
31. 31.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a mirror (c) a battery cell (d) a balloon
32. 32.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
33. 33.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) on a stool edge (d) low and steady
34. 34.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) more coins (d) fewer coins
35. 35.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) one flat sheet (d) paper with folded edges
36. 36.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
37. 37.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
38. 38.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a mirror (d) sheets of paper
40. 40.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) sheets of paper (c) two books (d) coins

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