Paper Bridge STEM Challenge Worksheet
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.
NameDateTime takenScore ___ / 40
- 1.🔍 Which is the odd one out? (a) a flat tissue (b) a torn flat sheet (c) a zigzag-folded sheet (d) one flat sheet
- 2.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
- 3.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of paper (c) the gap between books (d) coins it holds
- 4.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) a U-shaped channel (d) rolled paper tubes
- 5.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
- 6.True or false: one flat sheet makes a strong bridge. (a) False (b) True
- 7.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) an eggshell (c) a temple dome (d) a hollow bird bone
- 8.True or false: two books is not needed for the paper bridge. (a) True (b) False
- 9.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a U-shaped channel (d) a flat tissue
- 10.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a balloon (d) sheets of paper
- 11.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) coins (c) a balloon (d) yeast
- 12.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the triangle (d) the heart shape
- 13.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
- 14.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
- 15.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a bridge truss (c) an old stone bridge (d) an electric tower
- 16.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
- 17.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
- 18.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
- 19.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a torn flat sheet (d) a U-shaped channel
- 20.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) zero (d) the same number of
- 21.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
- 22.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
- 23.True or false: coins is not needed for the paper bridge. (a) False (b) True
- 24.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a battery cell (c) coins (d) a ruler
- 25.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
- 26.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a hollow bird bone (c) a bamboo pole (d) an eggshell
- 27.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a wet flat sheet (d) paper with folded edges
- 28.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
- 29.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
- 30.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we measure it (c) we change it
- 31.True or false: a bamboo pole gets its strength from triangles. (a) False (b) True
- 32.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a roof frame (c) a bridge truss (d) an old stone bridge
- 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
- 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
- 35.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) tubes (c) triangles
- 36.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) a zigzag-folded sheet (d) a flat tissue
- 37.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) yeast (d) a ruler
- 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) turmeric powder (c) sheets of paper (d) two books
- 39.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) rolled paper tubes (c) a torn flat sheet (d) one flat sheet
- 40.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) yeast (c) two books (d) a battery cell
Answer key
- a zigzag-folded sheet
- not needed
- coins it holds
- one flat sheet
- needed
- False
- a bridge truss
- False
- a U-shaped channel
- a balloon
- coins
- the triangle
- True
- False
- a round pillar
- True
- True
- needed
- a U-shaped channel
- more
- True
- True
- False
- a battery cell
- False
- an eggshell
- a wet flat sheet
- fewer coins
- False
- we keep it the same
- False
- a bamboo pole
- True
- False
- arches and domes
- a flat tissue
- yeast
- turmeric powder
- rolled paper tubes
- two books
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