Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 725 · 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.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) rub your eyes (d) skip washing
2. 2.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) high and wobbly (d) on top of a pet
3. 3.True or false: a balloon is needed for the paper bridge. (a) False (b) True
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the kind of coins (c) coins it holds (d) the shape of the paper
5. 5.⚖️ 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
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the shape of the paper (c) where coins are placed (d) coins it holds
7. 7.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
8. 8.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
9. 9.⚖️ 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
10. 10.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a mirror (c) a magnet (d) a ruler
11. 11.True or false: yeast is not needed for the paper bridge. (a) False (b) True
12. 12.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a magnet (c) two books (d) turmeric powder
13. 13.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) paper with folded edges (c) one flat sheet (d) a wet flat sheet
14. 14.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) yeast (c) a balloon (d) sheets of paper
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a flat tissue (d) a U-shaped channel
17. 17.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) two books (d) a mirror
20. 20.True or false: an electric tower gets its strength from triangles. (a) False (b) True
21. 21.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) a ruler (d) two books
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) two books (c) a ruler (d) sheets of paper
24. 24.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bamboo pole (c) a roof frame (d) an old stone bridge
25. 25.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
26. 26.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds add glue (d) folds are magnetic
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) True (b) False
28. 28.True or false: two books is needed for the paper bridge. (a) True (b) False
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we keep it the same (c) we change it
30. 30.🔍 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 floats up (d) it sags and falls
31. 31.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a wet flat sheet (c) a U-shaped channel (d) paper with folded edges
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a battery cell (c) a ruler (d) sheets of paper
33. 33.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
34. 34.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a balloon (c) two books (d) a ruler
35. 35.🥚 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
36. 36.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
37. 37.True or false: a magnet is needed for the paper bridge. (a) True (b) False
38. 38.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
39. 39.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) a battery cell (d) sheets of paper
40. 40.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a torn flat sheet (d) a zigzag-folded sheet

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