Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 205 · 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) low and steady (c) high and wobbly (d) on a stool edge
2. 2.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a U-shaped channel (d) a flat tissue
3. 3.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
4. 4.True or false: an electric tower gets its strength from triangles. (a) False (b) True
5. 5.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
6. 6.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it floats up (c) it turns to card (d) it gets stronger
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a magnet (d) coins
8. 8.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) two books (c) sheets of paper (d) coins
9. 9.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
10. 10.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
11. 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) where coins are placed (d) the shape of the paper
12. 12.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) an eggshell (c) a bamboo pole (d) a roof frame
13. 13.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
14. 14.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) more (d) less
15. 15.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a temple dome (c) an eggshell (d) a hollow bird bone
16. 16.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a mirror (c) sheets of paper (d) a balloon
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True
18. 18.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) an old stone bridge (c) a hollow bird bone (d) a round pillar
19. 19.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) one flat sheet (d) a zigzag-folded sheet
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) rolled paper tubes (b) one flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a mirror (c) coins (d) two books
23. 23.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) coins (c) two books (d) a ruler
24. 24.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
25. 25.True or false: coins is not needed for the paper bridge. (a) True (b) False
26. 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of paper
27. 27.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is very hot (c) its curved arch shape (d) it is made of steel
28. 28.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) a wet flat sheet (d) paper with folded edges
29. 29.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a bridge truss (c) a hollow bird bone (d) a temple dome
30. 30.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
31. 31.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) paper with folded edges (d) a flat tissue
32. 32.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) a flat tissue (b) a zigzag-folded sheet (c) one flat sheet (d) a wet flat sheet
34. 34.⚖️ 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
35. 35.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the triangle (c) the star (d) the square
36. 36.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) lick your fingers (d) wash your hands
37. 37.True or false: a round pillar gets its strength from triangles. (a) True (b) False
38. 38.⚖️ 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
39. 39.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) a U-shaped channel (d) one flat sheet
40. 40.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) the same number of (d) more

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