Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 417 · 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 torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
2. 2.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
3. 3.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) triangles (c) tubes
4. 4.🛟 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
5. 5.True or false: coins is not needed for the paper bridge. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) a flat tissue (b) a zigzag-folded sheet (c) one flat sheet (d) a wet flat sheet
7. 7.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) turmeric powder (d) coins
8. 8.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) a ruler (c) coins (d) two books
9. 9.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) one flat sheet (d) a U-shaped channel
10. 10.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
11. 11.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) more (d) upward
12. 12.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
13. 13.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
14. 14.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
15. 15.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) fewer coins (d) more coins
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a balloon (c) sheets of paper (d) two books
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) sheets of paper (d) coins
18. 18.True or false: a hollow bird bone gets its strength from arches or domes. (a) True (b) False
19. 19.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
20. 20.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) an old stone bridge (c) a bamboo pole (d) an electric tower
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a magnet (c) two books (d) coins
22. 22.⚖️ 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
23. 23.🔍 Which is the odd one out? (a) a flat tissue (b) paper with folded edges (c) a U-shaped channel (d) a zigzag-folded sheet
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
25. 25.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) zero (d) fewer
26. 26.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds add glue (d) folds make it wet
27. 27.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
28. 28.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a zigzag-folded sheet (d) a flat tissue
29. 29.🥚 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) its curved arch shape (d) it is very hot
30. 30.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the shape of the paper (c) the gap between books (d) coins it holds
33. 33.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) wash your hands (d) rub your eyes
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
35. 35.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) coins it holds (c) the gap between books (d) the shape of the paper
37. 37.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a mirror (c) sheets of paper (d) two books
38. 38.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
39. 39.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we measure it (c) we change it
40. 40.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles

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