Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 657 · 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.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
3. 3.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
4. 4.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) upward (d) more
5. 5.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) yeast (d) sheets of paper
6. 6.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) an electric tower (c) a round pillar (d) an eggshell
7. 7.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) coins it holds (c) the kind of paper (d) the gap between books
8. 8.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
9. 9.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a temple dome (c) a bridge truss (d) a hollow bird bone
10. 10.True or false: a roof frame gets its strength from arches or domes. (a) False (b) True
11. 11.True or false: a bridge truss gets its strength from a tube shape. (a) False (b) True
12. 12.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
13. 13.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a mirror (c) coins (d) sheets of paper
15. 15.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the triangle (c) the heart shape (d) the star
16. 16.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds add glue (d) folds make it stiffer
17. 17.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a magnet (c) two books (d) a ruler
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a ruler (d) turmeric powder
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a magnet (d) sheets of paper
20. 20.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it gets stronger (c) it turns to card (d) it floats up
21. 21.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) paper with folded edges (d) one flat sheet
22. 22.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
23. 23.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a mirror (d) two books
24. 24.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) where coins are placed (b) the shape of the paper (c) coins it holds
26. 26.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) coins (c) a magnet (d) a battery cell
27. 27.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) more (d) zero
28. 28.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) a battery cell (d) two books
30. 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the shape of the paper (c) the kind of coins (d) the kind of paper
31. 31.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a torn flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
32. 32.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
33. 33.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) the same coins (d) only water
34. 34.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
36. 36.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
37. 37.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers
38. 38.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
39. 39.🔍 Which is the odd one out? (a) a torn flat sheet (b) a U-shaped channel (c) rolled paper tubes (d) a zigzag-folded sheet
40. 40.🛟 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

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