Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 135 · 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 roof frame gets its strength from triangles. (a) False (b) True
2. 2.🧺 Which of these is not needed for the paper bridge? (a) two books (b) turmeric powder (c) coins (d) sheets of paper
3. 3.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a magnet (c) sheets of paper (d) a battery cell
4. 4.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
5. 5.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
6. 6.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
7. 7.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a hollow bird bone (c) a bamboo pole (d) a temple dome
8. 8.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds are magnetic (d) folds add glue
9. 9.⚖️ 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) the kind of paper
10. 10.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
11. 11.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) turmeric powder (d) two books
13. 13.🔮 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
14. 14.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) on top of a pet (d) low and steady
15. 15.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) one flat sheet
16. 16.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) wash your hands (d) skip washing
17. 17.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
18. 18.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
19. 19.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
20. 20.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) a wet flat sheet (d) a flat tissue
21. 21.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
22. 22.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
23. 23.⚖️ 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 change it (c) we keep it the same
24. 24.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the gap between books (c) the kind of paper (d) the kind of coins
26. 26.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a balloon (c) a ruler (d) a magnet
27. 27.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
28. 28.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a torn flat sheet
29. 29.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a U-shaped channel (c) rolled paper tubes (d) a zigzag-folded sheet
30. 30.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) one flat sheet (d) rolled paper tubes
31. 31.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
32. 32.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is very hot (d) it is magnetic
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) a zigzag-folded sheet (d) a flat tissue
37. 37.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) fewer (d) zero
38. 38.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) sheets of paper (c) a ruler (d) coins
39. 39.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) a U-shaped channel

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