Paper Bridge STEM Challenge Worksheet

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

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