Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 74 · 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.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the gap between books (c) the shape of the paper (d) coins it holds
2. 2.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) wash your hands (d) skip washing
3. 3.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) more (d) zero
4. 4.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
5. 5.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) a balloon
6. 6.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) paper with folded edges (d) a U-shaped channel
8. 8.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
9. 9.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
11. 11.True or false: a hollow bird bone gets its strength from triangles. (a) False (b) True
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the shape of the paper (c) the gap between books (d) the kind of paper
13. 13.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) an old stone bridge (c) a bamboo pole (d) a round pillar
14. 14.True or false: a magnet is needed for the paper bridge. (a) True (b) False
15. 15.True or false: coins is needed for the paper bridge. (a) False (b) True
16. 16.🥚 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
17. 17.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a roof frame (c) a bamboo pole (d) an eggshell
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
19. 19.🛟 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
20. 20.⚖️ 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
21. 21.⚖️ 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
22. 22.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a zigzag-folded sheet (d) a wet flat sheet
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
24. 24.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
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 measure it (c) we change it
27. 27.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds make it stiffer (d) folds add glue
28. 28.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) yeast (d) a ruler
29. 29.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
30. 30.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) turmeric powder (d) a ruler
32. 32.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
33. 33.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
34. 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
36. 36.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
37. 37.⚖️ 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 gap between books
38. 38.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) a zigzag-folded sheet
39. 39.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) where coins are placed (c) coins it holds
40. 40.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) fewer coins (d) the same coins

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