Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 366 · 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? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a battery cell (d) a ruler
3. 3.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
4. 4.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) upward (d) more
5. 5.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) a zigzag-folded sheet
6. 6.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
7. 7.True or false: a magnet is needed for the paper bridge. (a) True (b) False
8. 8.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) a U-shaped channel
9. 9.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a roof frame (c) an eggshell (d) a hollow bird bone
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) False (b) True
11. 11.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) zero (d) more
12. 12.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
13. 13.⚖️ 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
14. 14.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds make it stiffer (d) folds add glue
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a balloon (c) a ruler (d) sheets of paper
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of paper (c) the gap between books (d) where coins are placed
17. 17.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) low and steady (d) on a stool edge
18. 18.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
19. 19.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) yeast (c) two books (d) a magnet
20. 20.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) more coins (d) fewer coins
21. 21.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) an electric tower (c) a bamboo pole (d) a round pillar
22. 22.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a magnet (c) coins (d) a ruler
23. 23.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) yeast (c) a ruler (d) a balloon
24. 24.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) the shape of the paper (c) coins it holds
25. 25.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a U-shaped channel (d) a torn flat sheet
26. 26.🧺 Which of these is needed for the paper bridge? (a) yeast (b) sheets of paper (c) turmeric powder (d) a mirror
27. 27.🔍 Which is the odd one out? (a) a flat tissue (b) rolled paper tubes (c) a torn flat sheet (d) a wet flat sheet
28. 28.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
29. 29.True or false: yeast is needed for the paper bridge. (a) False (b) True
30. 30.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) its curved arch shape (c) it is made of steel (d) it is magnetic
31. 31.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
32. 32.True or false: yeast is not needed for the paper bridge. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) paper with folded edges (d) a flat tissue
34. 34.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
35. 35.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it floats up (c) it gets stronger (d) it turns to card
36. 36.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) paper with folded edges (d) a torn flat sheet
37. 37.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
38. 38.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
39. 39.True or false: coins is not needed for the paper bridge. (a) False (b) True
40. 40.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) one flat sheet (c) a zigzag-folded sheet (d) paper with folded edges

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