Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 993 · 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.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
2. 2.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a battery cell (c) coins (d) a mirror
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
5. 5.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a roof frame (c) an eggshell (d) a hollow bird bone
6. 6.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) triangles (c) tubes
7. 7.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) on a stool edge (d) high and wobbly
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a balloon (d) coins
9. 9.True or false: a balloon is needed for the paper bridge. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) rolled paper tubes (d) one flat sheet
11. 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the shape of the paper (c) the kind of paper (d) coins it holds
12. 12.⚖️ 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 coins
13. 13.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
14. 14.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we measure it (c) we change it
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the gap between books (c) the shape of the paper (d) coins it holds
16. 16.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) rolled paper tubes (d) a wet flat sheet
17. 17.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
18. 18.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) a zigzag-folded sheet (d) a torn flat sheet
19. 19.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a battery cell
21. 21.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) more (d) not at all
22. 22.🔍 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
23. 23.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) paper with folded edges (d) a flat tissue
24. 24.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
25. 25.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
26. 26.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) one flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
27. 27.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
28. 28.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) a balloon (d) sheets of paper
29. 29.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
30. 30.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) two books (d) a battery cell
31. 31.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
32. 32.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a magnet (c) coins (d) sheets of paper
34. 34.True or false: a magnet is needed for the paper bridge. (a) False (b) True
35. 35.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is made of steel (c) its curved arch shape (d) it is very hot
36. 36.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
37. 37.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) skip washing (d) rub your eyes
38. 38.True or false: coins is needed for the paper bridge. (a) True (b) False
39. 39.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) more coins (d) fewer coins
40. 40.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True

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