Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 926 · 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.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
2. 2.🔍 Which is the odd one out? (a) a flat tissue (b) a zigzag-folded sheet (c) a torn flat sheet (d) one flat sheet
3. 3.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the square (c) the star (d) the heart shape
4. 4.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers
5. 5.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is very hot (c) it is made of steel (d) it is magnetic
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the gap between books (c) coins it holds (d) the kind of paper
7. 7.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a battery cell (d) two books
9. 9.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
10. 10.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) zero (d) fewer
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) two books (c) sheets of paper (d) coins
13. 13.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a balloon (c) turmeric powder (d) a ruler
14. 14.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an old stone bridge (c) a roof frame (d) an electric tower
15. 15.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on a stool edge (d) on top of a pet
16. 16.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
18. 18.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
19. 19.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
20. 20.⚖️ 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
21. 21.⚖️ 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 change it (c) we measure it
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) sheets of paper (c) a ruler (d) coins
24. 24.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
25. 25.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
26. 26.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) less (d) more
27. 27.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a wet flat sheet (c) rolled paper tubes (d) paper with folded edges
28. 28.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) one flat sheet (c) a wet flat sheet (d) a torn flat sheet
29. 29.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
30. 30.🔍 Which is the odd one out? (a) paper with folded edges (b) a flat tissue (c) rolled paper tubes (d) a zigzag-folded sheet
31. 31.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
32. 32.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
33. 33.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) coins (c) a magnet (d) turmeric powder
34. 34.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a wet flat sheet (c) one flat sheet (d) a torn flat sheet
35. 35.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) more coins (d) only water
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
37. 37.True or false: a bamboo pole gets its strength from triangles. (a) True (b) False
38. 38.⚖️ 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 change it (c) we measure it
39. 39.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it turns to card (c) it gets stronger (d) it floats up
40. 40.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) coins it holds (c) the shape of the paper

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