Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 91 · 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.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of paper (c) the gap between books (d) coins it holds
2. 2.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
3. 3.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
4. 4.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) tubes (c) triangles
5. 5.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a temple dome (c) a hollow bird bone (d) a roof frame
8. 8.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
9. 9.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a battery cell (d) a ruler
11. 11.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) coins (c) sheets of paper (d) a ruler
12. 12.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
13. 13.🥚 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
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) two books (d) a magnet
15. 15.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) rub your eyes (d) wash your hands
16. 16.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on top of a pet (d) on a stool edge
17. 17.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
18. 18.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.⚖️ 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
20. 20.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) rolled paper tubes (c) a torn flat sheet (d) a wet flat sheet
21. 21.True or false: two books is not needed for the paper bridge. (a) False (b) True
22. 22.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) a U-shaped channel
23. 23.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the heart shape (c) the triangle (d) the square
24. 24.True or false: yeast is needed for the paper bridge. (a) False (b) True
25. 25.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds make it stiffer (d) folds add glue
26. 26.True or false: one flat sheet makes a weak bridge. (a) True (b) False
27. 27.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a magnet (c) a ruler (d) sheets of paper
28. 28.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a round pillar (c) a hollow bird bone (d) an eggshell
29. 29.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) a balloon (d) two books
30. 30.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) zero (d) more
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
32. 32.True or false: a hollow bird bone gets its strength from triangles. (a) False (b) True
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
34. 34.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) sheets of paper (c) a ruler (d) two books
35. 35.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) paper with folded edges (d) a torn flat sheet
36. 36.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) more (d) upward
37. 37.⚖️ 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
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) turmeric powder (c) two books (d) sheets of paper
39. 39.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
40. 40.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins

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