Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 818 · 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.🛟 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
2. 2.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
3. 3.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
4. 4.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a battery cell (c) sheets of paper (d) two books
5. 5.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
6. 6.🔍 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
7. 7.⚖️ 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
8. 8.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a roof frame (c) a temple dome (d) an old stone bridge
9. 9.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) low and steady (d) on top of a pet
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a ruler (d) a magnet
11. 11.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is very hot (d) it is made of steel
12. 12.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
13. 13.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) yeast
15. 15.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) two books (c) coins (d) a ruler
17. 17.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins
18. 18.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a flat tissue (d) a U-shaped channel
20. 20.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
21. 21.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
22. 22.True or false: an eggshell gets its strength from triangles. (a) False (b) True
23. 23.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
25. 25.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes
26. 26.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bridge truss (c) an electric tower (d) a bamboo pole
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
28. 28.🏗️ Where does a round pillar get its strength from? (a) tubes (b) arches and domes (c) triangles
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
30. 30.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a U-shaped channel (c) paper with folded edges (d) one flat sheet
31. 31.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
32. 32.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) one flat sheet (c) a torn flat sheet (d) a flat tissue
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
34. 34.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
36. 36.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a mirror (c) coins (d) a ruler
37. 37.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the shape of the paper (c) the kind of paper (d) coins it holds
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
39. 39.⚖️ 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
40. 40.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) more (d) fewer

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