Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 257 · 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) sheets of paper (c) coins (d) a magnet
2. 2.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) rub your eyes (d) wash your hands
3. 3.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
4. 4.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
5. 5.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
6. 6.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) sheets of paper (d) a balloon
7. 7.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a bridge truss (c) a roof frame (d) a temple dome
8. 8.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
9. 9.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a magnet (d) a ruler
10. 10.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
11. 11.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) low and steady (d) on a stool edge
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) sheets of paper (d) yeast
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) where coins are placed (c) the shape of the paper (d) coins it holds
14. 14.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) coins (d) yeast
15. 15.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.True or false: a magnet is needed for the paper bridge. (a) True (b) False
18. 18.🧺 Which of these is needed for the paper bridge? (a) coins (b) a balloon (c) a battery cell (d) yeast
19. 19.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) a U-shaped channel (d) paper with folded edges
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
21. 21.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) upward (d) less
22. 22.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds add glue (d) folds make it wet
23. 23.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
24. 24.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
25. 25.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
26. 26.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
27. 27.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
28. 28.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
29. 29.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) its curved arch shape (d) it is made of steel
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a balloon (d) coins
31. 31.🔍 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
32. 32.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
33. 33.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
34. 34.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the heart shape (c) the square (d) the star
35. 35.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a bridge truss (c) a temple dome (d) an eggshell
36. 36.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
37. 37.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
38. 38.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
39. 39.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a battery cell (d) coins
40. 40.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it

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