Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 176 · 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 battery cell for the paper bridge? (a) needed (b) not needed
2. 2.⚖️ 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
3. 3.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it gets stronger (c) it turns to card (d) it sags and falls
4. 4.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
5. 5.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
6. 6.🥚 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) it is magnetic (d) its curved arch shape
7. 7.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a flat tissue (d) a U-shaped channel
8. 8.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
11. 11.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
12. 12.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
13. 13.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) a wet flat sheet (d) a torn flat sheet
14. 14.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the kind of coins (c) coins it holds (d) the gap between books
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.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
17. 17.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
18. 18.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) where coins are placed (c) the shape of the paper (d) the kind of paper
20. 20.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
21. 21.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
22. 22.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
23. 23.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
24. 24.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
25. 25.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
26. 26.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) an eggshell (c) a temple dome (d) an electric tower
27. 27.True or false: a ruler is needed for the paper bridge. (a) False (b) True
28. 28.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
29. 29.🔍 Which is the odd one out? (a) one flat sheet (b) paper with folded edges (c) a torn flat sheet (d) a wet flat sheet
30. 30.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) zero (d) more
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.🛟 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
33. 33.True or false: a temple dome gets its strength from a tube shape. (a) True (b) False
34. 34.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
35. 35.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds make it stiffer (d) folds are magnetic
36. 36.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) arches and domes (c) triangles
37. 37.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) a torn flat sheet (d) rolled paper tubes
38. 38.True or false: a magnet is needed for the paper bridge. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) a torn flat sheet (d) a U-shaped channel
40. 40.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False

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