Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 81 · 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.🛟 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
2. 2.⚖️ 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
3. 3.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) one flat sheet (d) paper with folded edges
4. 4.True or false: a hollow bird bone gets its strength from triangles. (a) False (b) True
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
6. 6.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
7. 7.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) a magnet (d) coins
8. 8.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a mirror (d) a ruler
10. 10.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the triangle (d) the heart shape
11. 11.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds make it stiffer (d) folds are magnetic
12. 12.True or false: a bridge truss gets its strength from a tube shape. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) a U-shaped channel (b) a torn flat sheet (c) a wet flat sheet (d) one flat sheet
14. 14.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
15. 15.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
16. 16.True or false: an electric tower gets its strength from triangles. (a) True (b) False
17. 17.True or false: yeast is needed for the paper bridge. (a) False (b) True
18. 18.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
19. 19.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it turns to card (c) it sags and falls (d) it gets stronger
20. 20.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) a bridge truss (c) a roof frame (d) a temple dome
21. 21.True or false: a round pillar gets its strength from triangles. (a) True (b) False
22. 22.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of paper (c) coins it holds
23. 23.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a bridge truss (c) a roof frame (d) an eggshell
24. 24.True or false: one flat sheet makes a strong bridge. (a) True (b) False
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the gap between books (c) the shape of the paper (d) the kind of paper
26. 26.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) yeast (c) a magnet (d) a ruler
27. 27.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) two books (d) a battery cell
29. 29.🧺 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
30. 30.⚖️ 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
31. 31.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) one flat sheet (d) paper with folded edges
32. 32.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
33. 33.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) upward (d) less
34. 34.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) skip washing (d) lick your fingers
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a balloon (c) sheets of paper (d) two books
36. 36.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
37. 37.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
38. 38.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) a torn flat sheet (d) a zigzag-folded sheet
39. 39.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) the same number of (d) zero
40. 40.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed

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