Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 636 · 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 needed for the paper bridge? (a) a mirror (b) a battery cell (c) a balloon (d) coins
2. 2.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
4. 4.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) its curved arch shape (d) it is magnetic
5. 5.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) where coins are placed (c) coins it holds (d) the gap between books
7. 7.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) fewer coins (d) more coins
8. 8.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
9. 9.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
10. 10.True or false: a temple dome gets its strength from triangles. (a) True (b) False
11. 11.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.🔍 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 turns to card (d) it floats up
13. 13.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
14. 14.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a hollow bird bone (c) an eggshell (d) an old stone bridge
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we keep it the same (c) we change it
16. 16.True or false: a balloon is needed for the paper bridge. (a) True (b) False
17. 17.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) lick your fingers (d) rub your eyes
18. 18.True or false: two books is not needed for the paper bridge. (a) True (b) False
19. 19.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) coins (c) two books (d) sheets of paper
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
22. 22.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds make it wet (d) folds are magnetic
23. 23.⚖️ 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
24. 24.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
25. 25.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) a magnet (d) sheets of paper
26. 26.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a wet flat sheet (c) one flat sheet (d) a flat tissue
28. 28.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) paper with folded edges (d) a flat tissue
29. 29.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
30. 30.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) paper with folded edges (c) rolled paper tubes (d) a U-shaped channel
31. 31.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) paper with folded edges
32. 32.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a magnet (c) two books (d) a balloon
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
34. 34.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
35. 35.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) paper with folded edges (d) a torn flat sheet
36. 36.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
37. 37.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
38. 38.True or false: a magnet is needed for the paper bridge. (a) False (b) True
39. 39.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) a wet flat sheet (d) one flat sheet
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) a battery cell (d) sheets of paper

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