Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 672 · 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 is not needed for the paper bridge? (a) two books (b) coins (c) a battery cell (d) sheets of paper
2. 2.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
3. 3.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
4. 4.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a magnet (c) yeast (d) a ruler
5. 5.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
6. 6.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) less (d) not at all
7. 7.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a balloon (d) a ruler
9. 9.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds make it wet (d) folds add glue
10. 10.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) sheets of paper (c) two books (d) coins
11. 11.True or false: an old stone bridge gets its strength from a tube shape. (a) True (b) False
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
13. 13.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a battery cell (c) a mirror (d) sheets of paper
14. 14.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
15. 15.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) sheets of paper (c) two books (d) a ruler
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) False (b) True
18. 18.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
19. 19.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
21. 21.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
22. 22.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it turns to card (c) it gets stronger (d) it sags and falls
23. 23.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
24. 24.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) an old stone bridge (c) an eggshell (d) a hollow bird bone
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the gap between books (c) where coins are placed (d) the kind of paper
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) yeast (d) coins
27. 27.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) wash your hands (d) rub your eyes
28. 28.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a flat tissue (d) a torn flat sheet
29. 29.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) one flat sheet (d) a zigzag-folded sheet
30. 30.True or false: an electric tower gets its strength from triangles. (a) False (b) True
31. 31.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) the same coins (d) only water
32. 32.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) paper with folded edges (d) a flat tissue
35. 35.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) a wet flat sheet (d) rolled paper tubes
36. 36.True or false: one flat sheet makes a weak bridge. (a) False (b) True
37. 37.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) a flat tissue (d) a U-shaped channel
38. 38.True or false: a magnet is needed for the paper bridge. (a) True (b) False
39. 39.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.⚖️ 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

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