Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 762 · 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? True or false: the kind of paper is the one thing we change. (a) False (b) True
2. 2.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) an electric tower (c) a bamboo pole (d) a bridge truss
3. 3.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) fewer coins (d) the same coins
4. 4.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
5. 5.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
6. 6.⚖️ 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) where coins are placed
7. 7.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) an old stone bridge (c) a temple dome (d) a roof frame
8. 8.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) coins (d) yeast
10. 10.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
11. 11.True or false: a flat tissue makes a strong bridge. (a) True (b) False
12. 12.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it floats up (d) it sags and falls
13. 13.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a bridge truss (c) a round pillar (d) a roof frame
14. 14.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
15. 15.True or false: coins is needed for the paper bridge. (a) True (b) False
16. 16.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a battery cell (d) coins
17. 17.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a magnet (c) a balloon (d) sheets of paper
18. 18.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) high and wobbly (d) on a stool edge
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) where coins are placed (b) coins it holds (c) the shape of the paper
20. 20.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
21. 21.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) rub your eyes (d) skip washing
22. 22.True or false: yeast is not needed for the paper bridge. (a) False (b) True
23. 23.True or false: a magnet is needed for the paper bridge. (a) True (b) False
24. 24.🥚 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
25. 25.True or false: one flat sheet makes a weak bridge. (a) True (b) False
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) coins (c) sheets of paper (d) two books
27. 27.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) yeast (d) two books
28. 28.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) zero (d) the same number of
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) coins (c) sheets of paper (d) two books
30. 30.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the star (c) the square (d) the heart shape
31. 31.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
32. 32.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a ruler (c) a battery cell (d) a magnet
33. 33.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it wet (d) folds make it stiffer
34. 34.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
35. 35.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a flat tissue (c) a torn flat sheet (d) one flat sheet
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a ruler (d) a mirror
37. 37.True or false: two books is needed for the paper bridge. (a) False (b) True
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) coins (d) a balloon
40. 40.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a wet flat sheet (c) a zigzag-folded sheet (d) paper with folded edges

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