Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 990 · 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.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a magnet (c) two books (d) coins
2. 2.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
3. 3.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) lick your fingers (d) rub your eyes
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a magnet (c) coins (d) sheets of paper
5. 5.🔍 Which is the odd one out? (a) one flat sheet (b) a zigzag-folded sheet (c) a wet flat sheet (d) a torn flat sheet
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) the shape of the paper (c) coins it holds
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
8. 8.⚖️ 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
9. 9.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a magnet (c) a battery cell (d) turmeric powder
10. 10.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) turmeric powder (d) a ruler
12. 12.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
13. 13.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
14. 14.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
15. 15.🏗️ Where does a roof frame get its strength from? (a) triangles (b) arches and domes (c) tubes
16. 16.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
17. 17.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a mirror (c) coins (d) two books
19. 19.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
21. 21.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) one flat sheet (d) rolled paper tubes
23. 23.⚖️ 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
24. 24.⚖️ 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 gap between books
25. 25.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
26. 26.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a roof frame (c) a hollow bird bone (d) a round pillar
27. 27.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bamboo pole (c) a bridge truss (d) an eggshell
28. 28.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
29. 29.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a balloon (c) two books (d) turmeric powder
30. 30.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) fewer (d) zero
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) yeast (d) two books
32. 32.🥚 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
33. 33.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
34. 34.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
35. 35.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) where coins are placed (c) the kind of coins (d) the shape of the paper
36. 36.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a mirror (d) a ruler
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
38. 38.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
39. 39.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
40. 40.⚖️ 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

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