Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 316 · 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.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) fewer (d) zero
2. 2.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) a flat tissue (d) a wet flat sheet
3. 3.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
4. 4.🔍 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 sags and falls (d) it floats up
5. 5.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) two books (d) yeast
6. 6.True or false: one flat sheet makes a weak bridge. (a) True (b) False
7. 7.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a torn flat sheet (c) a wet flat sheet (d) one flat sheet
8. 8.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a balloon (c) coins (d) sheets of paper
9. 9.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
10. 10.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a flat tissue (d) one flat sheet
11. 11.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a flat tissue (d) rolled paper tubes
12. 12.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
13. 13.⚖️ 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
14. 14.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) two books (c) turmeric powder (d) yeast
16. 16.⚖️ 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
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) coins (c) two books (d) a ruler
18. 18.True or false: an electric tower gets its strength from triangles. (a) False (b) True
19. 19.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
20. 20.⚖️ 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
21. 21.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
22. 22.🏗️ Where does a temple dome get its strength from? (a) tubes (b) arches and domes (c) triangles
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the kind of coins (c) the shape of the paper (d) where coins are placed
24. 24.⚖️ 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
25. 25.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
26. 26.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) one flat sheet (d) a U-shaped channel
27. 27.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is magnetic (d) it is very hot
28. 28.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a battery cell (d) coins
30. 30.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
32. 32.⚖️ 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) where coins are placed
33. 33.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bamboo pole (c) an electric tower (d) a hollow bird bone
34. 34.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
35. 35.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds make it wet (d) folds add glue
36. 36.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a bridge truss (c) an old stone bridge (d) an eggshell
37. 37.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
38. 38.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
39. 39.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) wash your hands (d) rub your eyes
40. 40.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the shape of the paper (c) the gap between books (d) coins it holds

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