Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 830 · 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.🔮 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
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) sheets of paper (d) a battery cell
3. 3.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) sheets of paper (c) yeast (d) a mirror
4. 4.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
5. 5.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers
6. 6.🔍 Which is the odd one out? (a) a flat tissue (b) a torn flat sheet (c) rolled paper tubes (d) one flat sheet
7. 7.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) an eggshell (c) a hollow bird bone (d) a roof frame
8. 8.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a ruler (c) yeast (d) a mirror
9. 9.True or false: a flat tissue makes a strong bridge. (a) True (b) False
10. 10.True or false: a magnet is needed for the paper bridge. (a) False (b) True
11. 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the kind of paper (c) the kind of coins (d) the shape of the paper
12. 12.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) a mirror (d) coins
13. 13.⚖️ 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
14. 14.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
15. 15.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) on top of a pet (d) low and steady
16. 16.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) more coins (d) fewer coins
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) a mirror
18. 18.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a bamboo pole (c) a bridge truss (d) an eggshell
19. 19.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
20. 20.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.⚖️ 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) coins it holds (d) the kind of coins
22. 22.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
23. 23.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) a mirror (d) two books
24. 24.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) one flat sheet (d) rolled paper tubes
25. 25.True or false: one flat sheet makes a strong bridge. (a) False (b) True
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
27. 27.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) a torn flat sheet (d) a U-shaped channel
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a magnet (c) two books (d) sheets of paper
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
30. 30.⚖️ 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
31. 31.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is made of steel (c) it is very hot (d) its curved arch shape
32. 32.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) two books (d) a mirror
33. 33.⚖️ 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
34. 34.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a torn flat sheet (c) a U-shaped channel (d) rolled paper tubes
35. 35.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
36. 36.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
37. 37.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
39. 39.True or false: two books is not needed for the paper bridge. (a) False (b) True
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) a ruler (d) two books

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