Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 706 · 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) coins (b) two books (c) a ruler (d) yeast
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the gap between books (c) the kind of paper (d) coins it holds
3. 3.⚖️ 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
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a ruler (d) a balloon
5. 5.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
6. 6.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) skip washing (d) lick your fingers
7. 7.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a flat tissue
8. 8.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the star (c) the heart shape (d) the square
9. 9.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) more coins (d) the same coins
10. 10.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
11. 11.⚖️ 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
12. 12.🌉 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
13. 13.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a U-shaped channel (d) one flat sheet
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a battery cell (d) a ruler
15. 15.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) a battery cell (d) coins
16. 16.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) two books (d) a magnet
17. 17.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
18. 18.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
19. 19.True or false: yeast is needed for the paper bridge. (a) False (b) True
20. 20.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a roof frame (c) an old stone bridge (d) an eggshell
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) yeast (d) coins
22. 22.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) low and steady (d) on a stool edge
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) the gap between books (c) where coins are placed (d) the kind of coins
24. 24.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a bridge truss (c) a temple dome (d) a round pillar
25. 25.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
26. 26.🏗️ Which of these gets its strength from arches or domes? (a) a temple dome (b) an electric tower (c) a round pillar (d) a bridge truss
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
28. 28.True or false: a round pillar gets its strength from triangles. (a) True (b) False
29. 29.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
30. 30.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes
31. 31.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
32. 32.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) rolled paper tubes (d) a flat tissue
33. 33.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
34. 34.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
35. 35.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we measure it (c) we change it
36. 36.⚖️ 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
37. 37.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
38. 38.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) its curved arch shape (d) it is magnetic
39. 39.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a wet flat sheet (c) a flat tissue (d) one flat sheet
40. 40.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True

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