Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 869 · 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.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
2. 2.🔍 Which is the odd one out? (a) a torn flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) a U-shaped channel
3. 3.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a torn flat sheet (d) one flat sheet
4. 4.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) high and wobbly (d) low and steady
5. 5.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
6. 6.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a bamboo pole (c) a roof frame (d) an electric tower
7. 7.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a balloon (c) turmeric powder (d) yeast
8. 8.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) wash your hands (d) skip washing
9. 9.True or false: a balloon is needed for the paper bridge. (a) False (b) True
10. 10.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
11. 11.True or false: an electric tower gets its strength from triangles. (a) False (b) True
12. 12.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it floats up (c) it gets stronger (d) it sags and falls
13. 13.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) a round pillar (c) a bamboo pole (d) a temple dome
14. 14.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
16. 16.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
17. 17.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) the same number of (d) zero
18. 18.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a roof frame (c) a bamboo pole (d) a hollow bird bone
19. 19.⚖️ 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
20. 20.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a bridge truss (c) an eggshell (d) a hollow bird bone
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) a ruler (c) two books (d) sheets of paper
22. 22.⚖️ 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
23. 23.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
24. 24.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of paper
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the shape of the paper (c) the kind of coins (d) the kind of paper
26. 26.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a battery cell (c) two books (d) sheets of paper
28. 28.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
30. 30.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
31. 31.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
32. 32.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is made of steel (c) it is very hot (d) it is magnetic
33. 33.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
34. 34.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
35. 35.True or false: two books is needed for the paper bridge. (a) True (b) False
36. 36.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) an electric tower (c) a temple dome (d) a round pillar
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
38. 38.⚖️ 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
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a mirror (c) two books (d) a ruler
40. 40.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) a zigzag-folded sheet (d) a wet flat sheet

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