Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 113 · 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.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) rolled paper tubes (c) paper with folded edges (d) a torn flat sheet
2. 2.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
3. 3.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a flat tissue (c) rolled paper tubes (d) a U-shaped channel
4. 4.🌉 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
5. 5.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a bamboo pole (c) a temple dome (d) a bridge truss
6. 6.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) a torn flat sheet
7. 7.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
8. 8.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) more (d) upward
9. 9.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
10. 10.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) more coins (d) fewer coins
11. 11.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) sheets of paper (c) a ruler (d) coins
13. 13.🔍 Which is the odd one out? (a) a torn flat sheet (b) a U-shaped channel (c) a wet flat sheet (d) one flat sheet
14. 14.True or false: an electric tower gets its strength from triangles. (a) True (b) False
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
16. 16.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) high and wobbly (d) on a stool edge
17. 17.True or false: a magnet is needed for the paper bridge. (a) False (b) True
18. 18.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) rolled paper tubes (d) a flat tissue
19. 19.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a balloon (c) coins (d) sheets of paper
20. 20.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
22. 22.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) an old stone bridge (c) an eggshell (d) a temple dome
23. 23.True or false: a mirror is needed for the paper bridge. (a) False (b) True
24. 24.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a bridge truss (c) a roof frame (d) a hollow bird bone
25. 25.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) arches and domes (c) triangles
26. 26.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) lick your fingers (d) skip washing
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
28. 28.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) sheets of paper (d) yeast
29. 29.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) tubes (c) arches and domes
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
31. 31.True or false: coins is needed for the paper bridge. (a) False (b) True
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
33. 33.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
34. 34.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
35. 35.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
36. 36.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it floats up (d) it sags and falls
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a balloon (d) sheets of paper
38. 38.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
39. 39.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
40. 40.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge

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