Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 646 · 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 arches or domes. (a) True (b) False
2. 2.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) less (d) upward
3. 3.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) rolled paper tubes (d) a wet flat sheet
4. 4.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
5. 5.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a U-shaped channel (c) paper with folded edges (d) rolled paper tubes
6. 6.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) fewer coins (d) only water
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
8. 8.🛟 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
9. 9.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) paper with folded edges (d) a torn flat sheet
10. 10.True or false: a ruler is needed for the paper bridge. (a) False (b) True
11. 11.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the square (c) the star (d) the triangle
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
14. 14.True or false: a balloon is needed for the paper bridge. (a) False (b) True
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a battery cell (d) a ruler
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) two books (d) a mirror
17. 17.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) coins (d) turmeric powder
18. 18.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
19. 19.True or false: a magnet is needed for the paper bridge. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) paper with folded edges
21. 21.⚖️ 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
22. 22.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) on a stool edge (d) low and steady
23. 23.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
24. 24.🧺 Which of these is needed for the paper bridge? (a) yeast (b) coins (c) a magnet (d) a battery cell
25. 25.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
26. 26.True or false: yeast is needed for the paper bridge. (a) False (b) True
27. 27.🔍 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 gets stronger (d) it floats up
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) turmeric powder (c) a ruler (d) two books
29. 29.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a wet flat sheet (c) a torn flat sheet (d) one flat sheet
30. 30.⚖️ 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) where coins are placed (d) the kind of paper
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
32. 32.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) zero (d) more
33. 33.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
34. 34.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
36. 36.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) a balloon (d) coins
37. 37.True or false: a temple dome gets its strength from triangles. (a) False (b) True
38. 38.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
39. 39.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) yeast (c) a battery cell (d) sheets of paper
40. 40.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge

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