Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 992 · 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.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) coins (d) a magnet
2. 2.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
3. 3.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) on a stool edge (d) high and wobbly
4. 4.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a flat tissue (c) one flat sheet (d) a wet flat sheet
5. 5.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.True or false: two books is not needed for the paper bridge. (a) False (b) True
7. 7.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
8. 8.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a roof frame (c) a bridge truss (d) a hollow bird bone
9. 9.⚖️ 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
10. 10.🔮 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
11. 11.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
12. 12.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a balloon (c) a ruler (d) a mirror
13. 13.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
14. 14.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bridge truss (c) an eggshell (d) a hollow bird bone
15. 15.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) rub your eyes (d) wash your hands
16. 16.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it wet (d) folds make it stiffer
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
18. 18.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a roof frame (c) a hollow bird bone (d) an eggshell
19. 19.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
20. 20.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
21. 21.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) rolled paper tubes (c) paper with folded edges (d) a zigzag-folded sheet
22. 22.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) the shape of the paper (c) coins it holds
24. 24.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) a wet flat sheet (d) a zigzag-folded sheet
25. 25.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) yeast (d) coins
26. 26.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
27. 27.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) rolled paper tubes (d) a torn flat sheet
28. 28.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a flat tissue
29. 29.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) sheets of paper (c) two books (d) a ruler
31. 31.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) a wet flat sheet (d) a U-shaped channel
32. 32.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is magnetic (c) it is made of steel (d) it is very hot
33. 33.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a zigzag-folded sheet (d) one flat sheet
34. 34.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
35. 35.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
36. 36.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bridge truss (c) a round pillar (d) an electric tower
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
38. 38.True or false: a roof frame gets its strength from triangles. (a) False (b) True
39. 39.🔺 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
40. 40.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it gets stronger (c) it turns to card (d) it sags and falls

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