Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 28 · 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.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a mirror (d) a ruler
2. 2.🏗️ Where does an eggshell get its strength from? (a) triangles (b) arches and domes (c) tubes
3. 3.⚖️ 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 kind of paper (c) the gap between books (d) the shape of the paper
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) a ruler (c) two books (d) sheets of paper
5. 5.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
6. 6.True or false: an old stone bridge gets its strength from a tube shape. (a) True (b) False
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
8. 8.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
9. 9.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
10. 10.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
11. 11.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
12. 12.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a magnet (d) coins
14. 14.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a balloon (c) coins (d) turmeric powder
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) on a stool edge (d) low and steady
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) yeast (d) two books
18. 18.🔍 Which is the odd one out? (a) rolled paper tubes (b) a torn flat sheet (c) one flat sheet (d) a flat tissue
19. 19.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a ruler (d) a balloon
21. 21.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
23. 23.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it floats up (c) it gets stronger (d) it sags and falls
24. 24.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
25. 25.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) paper with folded edges (d) a wet flat sheet
27. 27.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) its curved arch shape (c) it is magnetic (d) it is made of steel
28. 28.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
30. 30.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
31. 31.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) an electric tower (c) an eggshell (d) an old stone bridge
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) where coins are placed (c) the kind of paper (d) coins it holds
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a mirror (c) sheets of paper (d) a ruler
34. 34.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
35. 35.🛟 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
36. 36.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) one flat sheet (d) a zigzag-folded sheet
37. 37.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
38. 38.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
39. 39.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
40. 40.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a ruler (d) yeast

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