Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 568 · 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 gets its strength from arches or domes? (a) a bridge truss (b) an eggshell (c) a bamboo pole (d) a roof frame
2. 2.🔍 Which is the odd one out? (a) paper with folded edges (b) a flat tissue (c) rolled paper tubes (d) a zigzag-folded sheet
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) a balloon
5. 5.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) high and wobbly (d) on top of a pet
6. 6.⚖️ 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
7. 7.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) zero (d) more
8. 8.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) rolled paper tubes (d) a wet flat sheet
9. 9.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
10. 10.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
11. 11.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
12. 12.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is made of steel (c) its curved arch shape (d) it is very hot
13. 13.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
14. 14.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins
15. 15.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) a zigzag-folded sheet (d) paper with folded edges
16. 16.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
17. 17.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) yeast
19. 19.True or false: yeast is needed for the paper bridge. (a) True (b) False
20. 20.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it floats up (c) it turns to card (d) it gets stronger
21. 21.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an electric tower (c) a hollow bird bone (d) an old stone bridge
22. 22.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
23. 23.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
24. 24.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a bamboo pole (c) an old stone bridge (d) a roof frame
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a mirror (d) two books
26. 26.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bridge truss (c) a temple dome (d) a hollow bird bone
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
29. 29.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) wash your hands (d) skip washing
30. 30.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes
31. 31.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
32. 32.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
35. 35.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) False (b) True
37. 37.True or false: coins is not needed for the paper bridge. (a) False (b) True
38. 38.True or false: a mirror is needed for the paper bridge. (a) False (b) True
39. 39.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) a wet flat sheet (d) a zigzag-folded sheet

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