Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 403 · 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.🔍 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
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
3. 3.True or false: a hollow bird bone gets its strength from triangles. (a) False (b) True
4. 4.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
5. 5.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a magnet (c) two books (d) turmeric powder
6. 6.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) two books (c) sheets of paper (d) coins
7. 7.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) coins it holds (c) the shape of the paper
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) sheets of paper (d) a balloon
9. 9.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) paper with folded edges (c) one flat sheet (d) a wet flat sheet
10. 10.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a battery cell (c) coins (d) two books
11. 11.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the star (c) the heart shape (d) the square
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) True (b) False
13. 13.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) one flat sheet (c) a torn flat sheet (d) a wet flat sheet
14. 14.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
15. 15.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
16. 16.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) a U-shaped channel (d) one flat sheet
17. 17.⚖️ 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
18. 18.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins
19. 19.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a flat tissue (d) one flat sheet
21. 21.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) low and steady (d) high and wobbly
22. 22.True or false: one flat sheet makes a weak bridge. (a) False (b) True
23. 23.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
24. 24.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a flat tissue (c) paper with folded edges (d) a zigzag-folded sheet
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
26. 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the kind of paper (c) the shape of the paper (d) the kind of coins
27. 27.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a zigzag-folded sheet (c) a wet flat sheet (d) a flat tissue
28. 28.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
29. 29.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) lick your fingers (d) wash your hands
30. 30.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
31. 31.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) a mirror (d) sheets of paper
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
33. 33.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the kind of coins (c) the shape of the paper (d) coins it holds
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
35. 35.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
36. 36.True or false: yeast is not needed for the paper bridge. (a) True (b) False
37. 37.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
38. 38.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
39. 39.🥚 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) it is very hot (d) its curved arch shape
40. 40.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) more (d) fewer

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids