Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 156 · 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.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) the kind of paper (d) the kind of coins
2. 2.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
3. 3.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) coins (c) a balloon (d) yeast
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) two books (d) a balloon
5. 5.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) paper with folded edges (d) a wet flat sheet
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
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 measure it (c) we change it
8. 8.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) its curved arch shape (d) it is made of steel
9. 9.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) paper with folded edges (d) a flat tissue
10. 10.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
11. 11.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
12. 12.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
13. 13.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the square (c) the triangle (d) the heart shape
14. 14.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
15. 15.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a wet flat sheet (c) rolled paper tubes (d) paper with folded edges
16. 16.⚖️ 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) the kind of coins
17. 17.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
18. 18.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) high and wobbly (d) low and steady
19. 19.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
20. 20.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
21. 21.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds are magnetic (d) folds make it wet
22. 22.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a round pillar (c) a hollow bird bone (d) an eggshell
23. 23.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
24. 24.🌉 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
25. 25.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) one flat sheet (d) rolled paper tubes
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) yeast (c) sheets of paper (d) two books
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
28. 28.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) coins (c) two books (d) a ruler
29. 29.🏗️ Where does a round pillar get its strength from? (a) tubes (b) triangles (c) arches and domes
30. 30.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
31. 31.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a U-shaped channel (d) one flat sheet
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the gap between books (c) the kind of paper (d) the shape of the paper
33. 33.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
34. 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
35. 35.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
36. 36.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
37. 37.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a ruler (d) a battery cell
40. 40.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a flat tissue (d) a U-shaped channel

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