Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 846 · 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.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
2. 2.True or false: an electric tower gets its strength from triangles. (a) True (b) False
3. 3.⚖️ 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
4. 4.🔺 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
5. 5.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) low and steady (d) on a stool edge
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) the shape of the paper (d) the kind of coins
7. 7.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
8. 8.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
9. 9.⚖️ 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 change it (c) we measure it
10. 10.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) coins (d) a battery cell
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
12. 12.True or false: a bamboo pole gets its strength from arches or domes. (a) True (b) False
13. 13.⚖️ 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 paper
14. 14.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an old stone bridge (c) an eggshell (d) an electric tower
15. 15.⚖️ 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
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) yeast (c) sheets of paper (d) coins
17. 17.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we measure it (c) we change it
18. 18.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) the same coins (d) only water
19. 19.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a ruler (d) a balloon
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.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) a balloon (d) sheets of paper
23. 23.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a zigzag-folded sheet (d) a flat tissue
24. 24.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a torn flat sheet (d) a zigzag-folded sheet
25. 25.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a balloon (c) two books (d) a magnet
26. 26.True or false: a flat tissue makes a strong bridge. (a) True (b) False
27. 27.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) a ruler (d) a mirror
28. 28.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
29. 29.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
30. 30.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) rolled paper tubes (d) a flat tissue
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
32. 32.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
33. 33.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
34. 34.🔍 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 floats up (d) it turns to card
35. 35.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
37. 37.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the kind of coins (c) the shape of the paper (d) the gap between books
38. 38.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) it is made of steel (d) its curved arch shape
39. 39.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) wash your hands (d) lick your fingers
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False

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