Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 621 · 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 makes a weak bridge? (a) rolled paper tubes (b) a wet flat sheet (c) a U-shaped channel (d) paper with folded edges
2. 2.True or false: two books is needed for the paper bridge. (a) True (b) False
3. 3.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is magnetic (c) it is very hot (d) its curved arch shape
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) where coins are placed (c) the gap between books (d) coins it holds
5. 5.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) lick your fingers (d) wash your hands
6. 6.True or false: a round pillar gets its strength from arches or domes. (a) True (b) False
7. 7.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it gets stronger (c) it floats up (d) it turns to card
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a ruler (d) a battery cell
9. 9.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
10. 10.True or false: a mirror is needed for the paper bridge. (a) True (b) False
11. 11.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
12. 12.⚖️ 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
13. 13.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
14. 14.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
15. 15.True or false: two books is not needed for the paper bridge. (a) True (b) False
16. 16.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
17. 17.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
18. 18.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) sheets of paper (c) a magnet (d) a mirror
19. 19.True or false: a flat tissue makes a strong bridge. (a) False (b) True
20. 20.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) zero (d) fewer
21. 21.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a bamboo pole (c) a bridge truss (d) an old stone bridge
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) coins (c) a ruler (d) sheets of paper
23. 23.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
24. 24.⚖️ 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
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
27. 27.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
28. 28.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) the same coins (d) only water
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
30. 30.🔮 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
31. 31.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) turmeric powder (c) a battery cell (d) coins
32. 32.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
33. 33.True or false: a roof frame gets its strength from triangles. (a) False (b) True
34. 34.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) on a stool edge (d) high and wobbly
35. 35.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) a U-shaped channel (d) a flat tissue
36. 36.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
37. 37.🔺 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 triangle (d) the star
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a ruler (d) a magnet
39. 39.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a bamboo pole (c) an eggshell (d) an electric tower
40. 40.True or false: an electric tower gets its strength from triangles. (a) False (b) True

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