Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 955 · 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 is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a flat tissue
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
3. 3.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds are magnetic (d) folds make it stiffer
4. 4.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
5. 5.True or false: yeast is not needed for the paper bridge. (a) False (b) True
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a balloon (d) coins
7. 7.True or false: a roof frame gets its strength from triangles. (a) True (b) False
8. 8.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
9. 9.🔺 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
10. 10.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we measure it (c) we change it
11. 11.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) more (d) zero
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
13. 13.🧺 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) turmeric powder
14. 14.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) on a stool edge (d) low and steady
15. 15.True or false: two books is not needed for the paper bridge. (a) True (b) False
16. 16.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) sheets of paper (c) a balloon (d) a magnet
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a battery cell (d) a ruler
18. 18.🧺 Which of these is needed for the paper bridge? (a) yeast (b) two books (c) turmeric powder (d) a magnet
19. 19.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) only water (d) more coins
20. 20.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
21. 21.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the shape of the paper (c) the gap between books (d) coins it holds
22. 22.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) the shape of the paper (c) coins it holds
24. 24.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) upward (d) less
25. 25.🔍 Which is the odd one out? (a) paper with folded edges (b) a wet flat sheet (c) a U-shaped channel (d) rolled paper tubes
26. 26.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
27. 27.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
28. 28.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
29. 29.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a roof frame (c) a temple dome (d) an electric tower
30. 30.🛟 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
31. 31.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
32. 32.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an eggshell (c) a hollow bird bone (d) a round pillar
33. 33.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) rolled paper tubes (d) a wet flat sheet
34. 34.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a flat tissue (b) a torn flat sheet (c) one flat sheet (d) a U-shaped channel
36. 36.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a round pillar (c) an old stone bridge (d) a roof frame
37. 37.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it floats up (c) it sags and falls (d) it gets stronger
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) where coins are placed (c) the shape of the paper (d) the gap between books
39. 39.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
40. 40.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True

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