Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 769 · 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 U-shaped channel (b) paper with folded edges (c) a flat tissue (d) a zigzag-folded sheet
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the shape of the paper (c) the kind of coins (d) the gap between books
3. 3.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) a battery cell (d) sheets of paper
4. 4.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
5. 5.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
6. 6.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
7. 7.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
8. 8.⚖️ 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 measure it (c) we keep it the same
9. 9.True or false: a roof frame gets its strength from triangles. (a) True (b) False
10. 10.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
11. 11.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it gets stronger (c) it turns to card (d) it sags and falls
12. 12.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) less (d) more
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of coins
14. 14.True or false: a ruler is needed for the paper bridge. (a) False (b) True
15. 15.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
16. 16.⚖️ 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
17. 17.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an old stone bridge (c) an electric tower (d) a hollow bird bone
18. 18.True or false: a round pillar gets its strength from triangles. (a) False (b) True
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) two books (d) yeast
20. 20.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) fewer coins (d) only water
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.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we keep it the same (c) we change it
23. 23.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
24. 24.🏗️ Where does a temple dome get its strength from? (a) tubes (b) arches and domes (c) triangles
25. 25.🌉 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
26. 26.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
27. 27.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) one flat sheet (d) a zigzag-folded sheet
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) turmeric powder (d) two books
29. 29.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) coins it holds (c) where coins are placed (d) the gap between books
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
31. 31.🛟 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
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) two books (d) a battery cell
33. 33.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
34. 34.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
35. 35.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a flat tissue (c) one flat sheet (d) a torn flat sheet
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) sheets of paper (d) a magnet
37. 37.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
38. 38.⚖️ 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
39. 39.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
40. 40.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) more (d) the same number of

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