Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 212 · 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) yeast (b) two books (c) sheets of paper (d) a ruler
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) coins it holds (c) where coins are placed (d) the shape of the paper
3. 3.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
6. 6.⚖️ 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
7. 7.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it turns to card (c) it floats up (d) it gets stronger
8. 8.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds add glue (d) folds make it wet
9. 9.🛟 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
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) yeast
11. 11.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins
12. 12.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) its curved arch shape (c) it is magnetic (d) it is made of steel
13. 13.⚖️ 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 measure it (c) we keep it the same
14. 14.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the kind of paper (c) the gap between books (d) coins it holds
15. 15.True or false: yeast is not needed for the paper bridge. (a) False (b) True
16. 16.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
17. 17.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
18. 18.True or false: a bamboo pole gets its strength from triangles. (a) False (b) True
19. 19.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a bamboo pole (c) an electric tower (d) an old stone bridge
21. 21.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) on a stool edge (d) high and wobbly
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
23. 23.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a bamboo pole (c) an eggshell (d) an old stone bridge
24. 24.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a round pillar (c) a bridge truss (d) an old stone bridge
25. 25.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
26. 26.True or false: two books is needed for the paper bridge. (a) True (b) False
27. 27.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
28. 28.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) arches and domes (c) triangles
29. 29.True or false: a hollow bird bone gets its strength from a tube shape. (a) False (b) True
30. 30.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
31. 31.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) sheets of paper (c) a ruler (d) coins
33. 33.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
34. 34.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) yeast (c) a mirror (d) two books
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a magnet (d) a ruler
36. 36.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a battery cell (c) turmeric powder (d) coins
37. 37.⚖️ 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
38. 38.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a zigzag-folded sheet (c) a wet flat sheet (d) one flat sheet
39. 39.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) more (d) the same number of
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a battery cell (c) coins (d) sheets of paper

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