Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 952 · 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.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a mirror (d) sheets of paper
3. 3.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a hollow bird bone (c) an electric tower (d) an eggshell
4. 4.⚖️ 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
5. 5.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a torn flat sheet (d) a U-shaped channel
6. 6.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
7. 7.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) coins it holds (c) the shape of the paper (d) the kind of paper
8. 8.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) a wet flat sheet (d) one flat sheet
9. 9.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
11. 11.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
12. 12.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
13. 13.⚖️ 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
14. 14.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it gets stronger (c) it floats up (d) it turns to card
15. 15.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) rolled paper tubes
16. 16.True or false: a roof frame gets its strength from triangles. (a) False (b) True
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
18. 18.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
19. 19.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
20. 20.⚖️ 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
21. 21.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) arches and domes (c) triangles
22. 22.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
23. 23.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a round pillar (c) a bridge truss (d) an old stone bridge
24. 24.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
25. 25.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
26. 26.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bamboo pole (c) a bridge truss (d) an eggshell
27. 27.True or false: a round pillar gets its strength from triangles. (a) False (b) True
28. 28.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a wet flat sheet (c) rolled paper tubes (d) a U-shaped channel
29. 29.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) sheets of paper (d) a battery cell
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) two books (c) coins (d) sheets of paper
31. 31.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) a zigzag-folded sheet (d) one flat sheet
32. 32.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) paper with folded edges (d) rolled paper tubes
33. 33.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
34. 34.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the gap between books (c) the shape of the paper (d) the kind of coins
35. 35.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) rub your eyes (d) lick your fingers
36. 36.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
37. 37.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
38. 38.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds make it stiffer (d) folds are magnetic
39. 39.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) fewer coins (d) only water
40. 40.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an old stone bridge (c) a round pillar (d) a hollow bird bone

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