Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 795 · 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 gets its strength from triangles? (a) a round pillar (b) a bamboo pole (c) an electric tower (d) a hollow bird bone
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a balloon (c) sheets of paper (d) two books
3. 3.True or false: two books is needed for the paper bridge. (a) False (b) True
4. 4.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it sags and falls (c) it floats up (d) it gets stronger
5. 5.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
6. 6.⚖️ 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
7. 7.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
8. 8.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) a zigzag-folded sheet (d) rolled paper tubes
9. 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) the kind of coins (c) where coins are placed (d) the kind of paper
10. 10.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) coins (c) a ruler (d) sheets of paper
11. 11.🛟 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
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
13. 13.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
14. 14.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
15. 15.🔍 Which is the odd one out? (a) a wet flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) a U-shaped channel
16. 16.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
17. 17.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) a battery cell
18. 18.True or false: a bamboo pole gets its strength from triangles. (a) False (b) True
19. 19.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) a wet flat sheet (d) paper with folded edges
20. 20.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it wet (d) folds make it stiffer
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
23. 23.True or false: a ruler is needed for the paper bridge. (a) False (b) True
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) two books (c) a ruler (d) sheets of paper
25. 25.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a roof frame (c) an eggshell (d) a bridge truss
26. 26.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a bamboo pole (c) a temple dome (d) an electric tower
27. 27.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
28. 28.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) True (b) False
30. 30.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) fewer coins (d) the same coins
31. 31.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is very hot (c) it is made of steel (d) it is magnetic
33. 33.True or false: an electric tower gets its strength from triangles. (a) False (b) True
34. 34.True or false: a balloon is needed for the paper bridge. (a) True (b) False
35. 35.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) wash your hands (d) lick your fingers
36. 36.⚖️ 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 change it (c) we measure it
37. 37.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
38. 38.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) a bamboo pole (c) an electric tower (d) a hollow bird bone
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) coins (d) a magnet
40. 40.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a zigzag-folded sheet (d) a wet flat sheet

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