Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 355 · 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 needed for the paper bridge? (a) a magnet (b) a balloon (c) a mirror (d) a ruler
2. 2.True or false: a magnet is needed for the paper bridge. (a) True (b) False
3. 3.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) a wet flat sheet (d) paper with folded edges
4. 4.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) a ruler (c) sheets of paper (d) two books
6. 6.True or false: a flat tissue makes a weak bridge. (a) False (b) True
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
8. 8.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bridge truss (c) an eggshell (d) an old stone bridge
9. 9.True or false: a flat tissue makes a strong bridge. (a) False (b) True
10. 10.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it sags and falls (c) it floats up (d) it gets stronger
11. 11.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
12. 12.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) yeast (c) a magnet (d) sheets of paper
13. 13.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) one flat sheet (c) a torn flat sheet (d) a flat tissue
14. 14.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) two books (d) a mirror
15. 15.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) it is made of steel (d) its curved arch shape
16. 16.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) a torn flat sheet
17. 17.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
18. 18.⚖️ 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
19. 19.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) on a stool edge (d) low and steady
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a mirror (c) sheets of paper (d) two books
21. 21.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
22. 22.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a roof frame (c) an electric tower (d) a bridge truss
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) where coins are placed (c) the gap between books (d) the shape of the paper
24. 24.True or false: coins is needed for the paper bridge. (a) True (b) False
25. 25.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
26. 26.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a balloon (c) coins (d) two books
27. 27.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) a temple dome (c) an old stone bridge (d) a bridge truss
28. 28.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) only water (d) more coins
29. 29.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) paper with folded edges
30. 30.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
31. 31.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a torn flat sheet (c) a U-shaped channel (d) rolled paper tubes
32. 32.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) yeast
33. 33.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
34. 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
35. 35.⚖️ 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
36. 36.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) two books (d) a magnet
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) False (b) True
39. 39.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
40. 40.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True

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