Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 318 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a balloon (d) sheets of paper
2. 2.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a torn flat sheet (c) paper with folded edges (d) rolled paper tubes
3. 3.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a flat tissue
4. 4.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) a torn flat sheet (d) a zigzag-folded sheet
5. 5.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the gap between books (c) coins it holds
6. 6.🥚 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
7. 7.🔍 Which is the odd one out? (a) one flat sheet (b) a zigzag-folded sheet (c) a U-shaped channel (d) paper with folded edges
8. 8.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) False (b) True
9. 9.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) the same number of (d) fewer
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
11. 11.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) less (d) upward
12. 12.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bamboo pole (c) an electric tower (d) an eggshell
13. 13.⚖️ 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) coins it holds
14. 14.⚖️ 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
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) coins it holds (c) where coins are placed (d) the kind of paper
16. 16.True or false: a ruler is needed for the paper bridge. (a) True (b) False
17. 17.⚖️ 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
18. 18.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) rub your eyes (d) skip washing
19. 19.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a flat tissue (d) a U-shaped channel
20. 20.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an old stone bridge (c) a bamboo pole (d) an electric tower
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
22. 22.🛟 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
23. 23.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
24. 24.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
25. 25.True or false: coins is needed for the paper bridge. (a) False (b) True
26. 26.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
27. 27.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) an old stone bridge (c) a hollow bird bone (d) an electric tower
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) a ruler (c) two books (d) sheets of paper
29. 29.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) paper with folded edges (d) a torn flat sheet
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) sheets of paper (c) two books (d) a ruler
31. 31.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
32. 32.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
33. 33.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a ruler (c) yeast (d) a battery cell
34. 34.True or false: a mirror is needed for the paper bridge. (a) True (b) False
35. 35.🧺 Which of these is needed for the paper bridge? (a) two books (b) a mirror (c) a magnet (d) a balloon
36. 36.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a mirror (c) coins (d) two books
37. 37.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
39. 39.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) a wet flat sheet (b) paper with folded edges (c) one flat sheet (d) a torn flat sheet

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