Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 867 · 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: an electric tower gets its strength from arches or domes. (a) True (b) False
2. 2.True or false: coins is not needed for the paper bridge. (a) True (b) False
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the gap between books
5. 5.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
6. 6.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) a flat tissue
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
8. 8.True or false: a hollow bird bone gets its strength from arches or domes. (a) True (b) False
9. 9.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it turns to card (d) it sags and falls
10. 10.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a bamboo pole (c) a temple dome (d) a bridge truss
11. 11.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we keep it the same (c) we change it
12. 12.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) its curved arch shape (d) it is magnetic
13. 13.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
14. 14.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
16. 16.True or false: two books is not needed for the paper bridge. (a) True (b) False
17. 17.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
18. 18.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) a torn flat sheet (d) a zigzag-folded sheet
19. 19.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a bamboo pole (c) an eggshell (d) a bridge truss
20. 20.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) more coins (d) the same coins
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a mirror (c) sheets of paper (d) a ruler
22. 22.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an old stone bridge (c) a bamboo pole (d) a bridge truss
23. 23.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a balloon (c) two books (d) sheets of paper
25. 25.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds are magnetic (d) folds make it stiffer
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) False (b) True
27. 27.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) tubes (c) arches and domes
28. 28.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
29. 29.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
30. 30.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
31. 31.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a magnet (c) a balloon (d) coins
32. 32.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
33. 33.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
34. 34.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a temple dome (c) a roof frame (d) an eggshell
35. 35.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
36. 36.⚖️ 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
37. 37.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) less (c) not at all (d) upward
38. 38.True or false: one flat sheet makes a strong bridge. (a) True (b) False
39. 39.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
40. 40.🛟 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

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