Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 806 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) yeast (d) two books
2. 2.🧺 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
3. 3.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) skip washing (d) rub your eyes
4. 4.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
5. 5.True or false: a mirror is needed for the paper bridge. (a) True (b) False
6. 6.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) one flat sheet (c) rolled paper tubes (d) a U-shaped channel
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a balloon (c) coins (d) sheets of paper
8. 8.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
9. 9.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) turmeric powder (d) two books
11. 11.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
12. 12.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) low and steady (d) on a stool edge
13. 13.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a roof frame (c) an old stone bridge (d) a bamboo pole
14. 14.True or false: an old stone bridge gets its strength from a tube shape. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a torn flat sheet (c) a U-shaped channel (d) rolled paper tubes
16. 16.True or false: one flat sheet makes a strong bridge. (a) True (b) False
17. 17.True or false: a flat tissue makes a strong bridge. (a) True (b) False
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) False (b) True
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.True or false: a balloon is needed for the paper bridge. (a) True (b) False
21. 21.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
22. 22.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
23. 23.🏗️ Which of these gets its strength from arches or domes? (a) a temple dome (b) an electric tower (c) a bamboo pole (d) a bridge truss
24. 24.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
25. 25.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a torn flat sheet (c) a U-shaped channel (d) rolled paper tubes
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
27. 27.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a temple dome (c) a hollow bird bone (d) a bridge truss
28. 28.True or false: coins is needed for the paper bridge. (a) True (b) False
29. 29.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the star (d) the triangle
30. 30.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
31. 31.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) the same number of (d) fewer
32. 32.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
33. 33.🔍 Which is the odd one out? (a) a flat tissue (b) a U-shaped channel (c) a zigzag-folded sheet (d) paper with folded edges
34. 34.🏗️ Where does an eggshell get its strength from? (a) triangles (b) arches and domes (c) tubes
35. 35.🔍 Which is the odd one out? (a) one flat sheet (b) rolled paper tubes (c) paper with folded edges (d) a U-shaped channel
36. 36.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a battery cell (c) two books (d) coins
37. 37.🥚 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) its curved arch shape (d) it is magnetic
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) two books (d) a magnet
39. 39.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) arches and domes (c) triangles
40. 40.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) coins (c) two books (d) a ruler

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