Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 49 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a ruler (d) a battery cell
2. 2.⚖️ 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
3. 3.⚖️ 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 paper (c) the gap between books (d) coins it holds
4. 4.🛟 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
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) False (b) True
6. 6.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) less (d) not at all
7. 7.⚖️ 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
8. 8.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
9. 9.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) one flat sheet (d) a U-shaped channel
10. 10.True or false: one flat sheet makes a strong bridge. (a) False (b) True
11. 11.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a hollow bird bone (c) a bamboo pole (d) a roof frame
12. 12.🔍 Which is the odd one out? (a) a wet flat sheet (b) rolled paper tubes (c) a flat tissue (d) one flat sheet
13. 13.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) wash your hands (d) skip washing
14. 14.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) yeast (c) two books (d) a magnet
15. 15.⚖️ 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) the kind of coins
16. 16.🥚 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) its curved arch shape (d) it is magnetic
17. 17.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a battery cell (d) a ruler
18. 18.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) a U-shaped channel
21. 21.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) more coins (d) the same coins
22. 22.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a balloon (d) a ruler
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
24. 24.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a U-shaped channel (c) one flat sheet (d) a torn flat sheet
25. 25.🔍 Which is the odd one out? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a torn flat sheet (d) a flat tissue
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) turmeric powder (d) a ruler
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) False (b) True
28. 28.True or false: an old stone bridge gets its strength from a tube shape. (a) True (b) False
29. 29.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
30. 30.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) a magnet (c) a mirror (d) a balloon
31. 31.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) rolled paper tubes (c) a flat tissue (d) one flat sheet
32. 32.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
33. 33.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
35. 35.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
36. 36.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
37. 37.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the gap between books (c) the shape of the paper
39. 39.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same

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