Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 192 · 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 magnet for the paper bridge? (a) not needed (b) needed
2. 2.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
3. 3.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
4. 4.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) one flat sheet (c) paper with folded edges (d) rolled paper tubes
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
6. 6.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on a stool edge (d) on top of a pet
7. 7.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) skip washing (d) lick your fingers
8. 8.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) yeast (c) turmeric powder (d) coins
9. 9.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
10. 10.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) turmeric powder (c) a ruler (d) two books
12. 12.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) paper with folded edges (d) a torn flat sheet
13. 13.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) fewer (d) zero
14. 14.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
15. 15.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
16. 16.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) two books (c) turmeric powder (d) yeast
17. 17.⚖️ 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
18. 18.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is made of steel (d) it is very hot
20. 20.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) two books (d) yeast
21. 21.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
22. 22.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) where coins are placed
23. 23.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) one flat sheet
26. 26.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
28. 28.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) more coins (d) only water
29. 29.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it gets stronger (c) it sags and falls (d) it floats up
30. 30.⚖️ 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) coins it holds (d) the kind of paper
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
33. 33.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) where coins are placed (c) the kind of paper (d) coins it holds
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) two books (d) a balloon
35. 35.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
36. 36.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
37. 37.True or false: coins is needed for the paper bridge. (a) False (b) True
38. 38.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
39. 39.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) paper with folded edges (d) a wet flat sheet
40. 40.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True

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