Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 329 · 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: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
2. 2.🧺 Which of these is needed for the paper bridge? (a) two books (b) turmeric powder (c) a balloon (d) a mirror
3. 3.⚖️ 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
4. 4.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
5. 5.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a hollow bird bone (c) an electric tower (d) a bamboo pole
6. 6.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
7. 7.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is very hot (c) it is made of steel (d) it is magnetic
8. 8.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
9. 9.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
10. 10.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
11. 11.True or false: a temple dome gets its strength from a tube shape. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) rolled paper tubes (d) a U-shaped channel
13. 13.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
14. 14.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) wash your hands (d) rub your eyes
15. 15.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
16. 16.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
17. 17.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) on top of a pet (d) low and steady
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) a battery cell (d) sheets of paper
19. 19.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
20. 20.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) one flat sheet (d) a U-shaped channel
22. 22.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) rolled paper tubes (b) a flat tissue (c) a U-shaped channel (d) paper with folded edges
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) yeast (d) sheets of paper
25. 25.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
26. 26.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
27. 27.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) two books (c) sheets of paper (d) a ruler
28. 28.True or false: one flat sheet makes a strong bridge. (a) False (b) True
29. 29.⚖️ 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
30. 30.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
31. 31.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it gets stronger (c) it floats up (d) it turns to card
32. 32.⚖️ 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 kind of coins
33. 33.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) rolled paper tubes (d) a flat tissue
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
35. 35.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) rolled paper tubes (d) a wet flat sheet
37. 37.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a balloon (c) sheets of paper (d) a ruler
39. 39.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a magnet (c) a ruler (d) a battery cell
40. 40.True or false: paper with folded edges makes a strong bridge. (a) False (b) True

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