Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 390 · 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.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
2. 2.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
3. 3.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
4. 4.🔍 Which is the odd one out? (a) a U-shaped channel (b) a wet flat sheet (c) one flat sheet (d) a torn flat sheet
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
6. 6.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) skip washing (d) lick your fingers
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
8. 8.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) turmeric powder (d) two books
9. 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the shape of the paper (c) the kind of coins (d) coins it holds
10. 10.⚖️ 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
11. 11.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) yeast (d) two books
12. 12.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
13. 13.⚖️ 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
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a battery cell (c) two books (d) sheets of paper
15. 15.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) rolled paper tubes (d) one flat sheet
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
17. 17.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
18. 18.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
19. 19.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) an eggshell (c) a bridge truss (d) a hollow bird bone
20. 20.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
21. 21.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
22. 22.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
23. 23.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a temple dome (c) an old stone bridge (d) a bridge truss
24. 24.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) one flat sheet (d) rolled paper tubes
25. 25.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a ruler (d) turmeric powder
26. 26.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
27. 27.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
28. 28.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) low and steady (d) high and wobbly
29. 29.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it floats up (c) it gets stronger (d) it sags and falls
30. 30.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a temple dome (c) a round pillar (d) an electric tower
31. 31.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) a magnet
32. 32.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds make it wet (d) folds are magnetic
33. 33.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) paper with folded edges (c) a U-shaped channel (d) rolled paper tubes
34. 34.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) the same coins (d) more coins
35. 35.⚖️ 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
36. 36.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a balloon (d) two books
37. 37.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
38. 38.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) two books (d) a mirror
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
40. 40.True or false: yeast is needed for the paper bridge. (a) True (b) False

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