Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 445 · 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 an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
2. 2.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
3. 3.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a ruler (c) yeast (d) a balloon
4. 4.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
5. 5.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) lick your fingers (d) skip washing
7. 7.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the shape of the paper (c) the kind of paper (d) where coins are placed
8. 8.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) two books (c) a magnet (d) a balloon
9. 9.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a balloon (c) yeast (d) a magnet
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of paper (c) the shape of the paper
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
12. 12.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
13. 13.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
14. 14.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) rolled paper tubes (d) a torn flat sheet
16. 16.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) its curved arch shape (d) it is made of steel
17. 17.🔺 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
18. 18.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) turmeric powder (d) coins
19. 19.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) on top of a pet (d) high and wobbly
20. 20.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
21. 21.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) coins (c) a ruler (d) two books
22. 22.🧺 Which of these is needed for the paper bridge? (a) coins (b) turmeric powder (c) a magnet (d) a battery cell
23. 23.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) a wet flat sheet (d) one flat sheet
24. 24.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a magnet (d) a ruler
25. 25.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) a U-shaped channel (d) a torn flat sheet
26. 26.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) sheets of paper (d) a balloon
27. 27.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
28. 28.True or false: coins is not needed for the paper bridge. (a) False (b) True
29. 29.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
30. 30.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) less (c) not at all (d) upward
31. 31.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
32. 32.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) fewer (d) zero
33. 33.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) coins it holds (c) the kind of paper (d) where coins are placed
34. 34.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
35. 35.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a hollow bird bone (c) a bridge truss (d) an electric tower
36. 36.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
37. 37.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bridge truss (c) a round pillar (d) an old stone bridge
38. 38.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
39. 39.🧺 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) a battery cell
40. 40.🔍 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

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