Paper Bridge STEM Challenge Worksheet

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

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