Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 360 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) two books (d) coins
2. 2.🛟 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
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
4. 4.⚖️ 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 measure it (c) we change it
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a ruler (d) a battery cell
6. 6.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
7. 7.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it sags and falls (d) it turns to card
8. 8.⚖️ 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
9. 9.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
10. 10.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
11. 11.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) one flat sheet
13. 13.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
14. 14.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of coins (c) the shape of the paper
16. 16.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
17. 17.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a roof frame (c) a temple dome (d) a bamboo pole
18. 18.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds add glue (d) folds make it stiffer
19. 19.True or false: one flat sheet makes a weak bridge. (a) True (b) False
20. 20.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
22. 22.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) lick your fingers (d) wash your hands
23. 23.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) coins (c) a battery cell (d) a mirror
24. 24.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) a ruler (c) coins (d) two books
25. 25.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) turmeric powder (d) sheets of paper
26. 26.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) its curved arch shape (d) it is magnetic
27. 27.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the triangle (d) the square
28. 28.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) a zigzag-folded sheet
29. 29.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) coins it holds (c) where coins are placed (d) the gap between books
30. 30.True or false: coins is needed for the paper bridge. (a) False (b) True
31. 31.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a wet flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
32. 32.True or false: coins is not needed for the paper bridge. (a) True (b) False
33. 33.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) the same number of (d) zero
34. 34.True or false: a balloon is needed for the paper bridge. (a) True (b) False
35. 35.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
37. 37.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a temple dome (c) a bridge truss (d) an old stone bridge
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) sheets of paper (c) a ruler (d) two books
40. 40.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed

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