Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 751 · 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 is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) a wet flat sheet (d) a flat tissue
2. 2.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins
3. 3.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
4. 4.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) True (b) False
5. 5.⚖️ 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 kind of paper (c) the gap between books (d) coins it holds
6. 6.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
8. 8.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) two books (c) turmeric powder (d) a balloon
9. 9.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
10. 10.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a magnet (c) a ruler (d) sheets of paper
12. 12.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) rub your eyes (d) lick your fingers
13. 13.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
14. 14.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
15. 15.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
16. 16.🔺 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 star (d) the heart shape
17. 17.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.True or false: a ruler is needed for the paper bridge. (a) False (b) True
19. 19.🔍 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
20. 20.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) sheets of paper (c) two books (d) a ruler
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we change it (c) we measure it
23. 23.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
24. 24.True or false: a temple dome gets its strength from a tube shape. (a) False (b) True
25. 25.True or false: two books is not needed for the paper bridge. (a) False (b) True
26. 26.🌉 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
27. 27.🛟 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
28. 28.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
29. 29.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) sheets of paper (d) a mirror
30. 30.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
31. 31.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
32. 32.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is made of steel (c) it is very hot (d) it is magnetic
33. 33.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
34. 34.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the shape of the paper (c) the kind of paper (d) the kind of coins
35. 35.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a round pillar (c) an eggshell (d) a hollow bird bone
36. 36.True or false: a round pillar gets its strength from arches or domes. (a) True (b) False
37. 37.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds add glue (d) folds make it wet
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) a mirror (d) two books
39. 39.True or false: one flat sheet makes a weak bridge. (a) True (b) False
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) a ruler (d) two books

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