Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 726 · 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.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
2. 2.⚖️ 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 measure it (c) we change it
3. 3.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an eggshell (c) a bridge truss (d) a hollow bird bone
4. 4.True or false: a roof frame gets its strength from triangles. (a) False (b) True
5. 5.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) a ruler (d) a magnet
7. 7.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
8. 8.⚖️ 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
9. 9.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
10. 10.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
11. 11.🥚 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
12. 12.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) paper with folded edges (d) one flat sheet
13. 13.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
14. 14.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) turmeric powder (d) two books
17. 17.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
18. 18.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
19. 19.🔍 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 gets stronger (d) it turns to card
20. 20.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) coins (d) a mirror
22. 22.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
23. 23.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
24. 24.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the square (c) the heart shape (d) the triangle
25. 25.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
26. 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the shape of the paper (c) coins it holds (d) the gap between books
27. 27.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) one flat sheet (d) rolled paper tubes
28. 28.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) a zigzag-folded sheet
29. 29.True or false: two books is needed for the paper bridge. (a) False (b) True
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a ruler (d) yeast
31. 31.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
32. 32.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
33. 33.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a magnet (c) a balloon (d) sheets of paper
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
35. 35.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
37. 37.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) skip washing (d) wash your hands
38. 38.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) a zigzag-folded sheet (d) paper with folded edges
40. 40.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady

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