Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 541 · 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.True or false: two books is not needed for the paper bridge. (a) True (b) False
2. 2.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) a wet flat sheet (d) a flat tissue
3. 3.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
4. 4.⚖️ 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
5. 5.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds are magnetic (d) folds add glue
6. 6.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) paper with folded edges (d) a wet flat sheet
7. 7.True or false: coins is needed for the paper bridge. (a) False (b) True
8. 8.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a round pillar (c) an old stone bridge (d) a bridge truss
9. 9.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
10. 10.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is made of steel (c) its curved arch shape (d) it is very hot
12. 12.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) rolled paper tubes (d) a flat tissue
13. 13.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
14. 14.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
15. 15.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) the same number of (d) zero
16. 16.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
17. 17.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) wash your hands (d) skip washing
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) coins (d) a mirror
20. 20.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) rolled paper tubes (c) one flat sheet (d) paper with folded edges
21. 21.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of coins
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) a magnet
23. 23.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a torn flat sheet (d) a U-shaped channel
24. 24.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the triangle (d) the square
25. 25.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
26. 26.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
27. 27.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
28. 28.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) yeast (c) a battery cell (d) coins
29. 29.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
30. 30.True or false: two books is needed for the paper bridge. (a) False (b) True
31. 31.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) the same coins (d) more coins
32. 32.⚖️ 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) coins it holds (d) the kind of coins
33. 33.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) two books (d) a balloon
35. 35.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
36. 36.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a roof frame (c) a temple dome (d) an old stone bridge
37. 37.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an electric tower (c) an eggshell (d) an old stone bridge
38. 38.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) paper with folded edges (d) one flat sheet
39. 39.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) not at all (d) less
40. 40.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) turmeric powder (c) sheets of paper (d) a mirror

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