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.🛟 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
- 2.🏗️ Where does a temple dome get its strength from? (a) tubes (b) arches and domes (c) triangles
- 3.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
- 4.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) a U-shaped channel
- 5.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) one flat sheet (d) a U-shaped channel
- 6.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) more (d) the same number of
- 7.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
- 8.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
- 9.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
- 10.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
- 11.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
- 12.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a U-shaped channel (d) a flat tissue
- 13.True or false: a ruler is needed for the paper bridge. (a) True (b) False
- 14.🧺 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) a balloon
- 15.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a roof frame (c) a temple dome (d) a hollow bird bone
- 16.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
- 17.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) a flat tissue (d) one flat sheet
- 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) the kind of coins (c) coins it holds (d) where coins are placed
- 19.True or false: a balloon is needed for the paper bridge. (a) True (b) False
- 20.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) an eggshell (c) a temple dome (d) a bridge truss
- 21.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
- 22.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
- 23.🧺 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) a magnet
- 24.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) turmeric powder (d) coins
- 25.True or false: coins is needed for the paper bridge. (a) False (b) True
- 26.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
- 27.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a bamboo pole (c) a temple dome (d) an electric tower
- 28.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
- 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
- 30.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
- 31.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a roof frame (c) a bridge truss (d) a temple dome
- 32.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
- 33.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) a torn flat sheet (d) a zigzag-folded sheet
- 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
- 35.🏗️ Where does a round pillar get its strength from? (a) tubes (b) arches and domes (c) triangles
- 36.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds make it stiffer (d) folds are magnetic
- 37.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
- 38.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a mirror (c) a ruler (d) a balloon
- 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) two books (c) coins (d) a ruler
- 40.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
Answer key
- low and steady
- arches and domes
- not needed
- one flat sheet
- a U-shaped channel
- more
- strong bridge
- False
- True
- strong bridge
- not needed
- a flat tissue
- True
- a balloon
- a roof frame
- False
- rolled paper tubes
- the shape of the paper
- False
- a bridge truss
- tubes
- not needed
- a magnet
- turmeric powder
- True
- we keep it the same
- a bamboo pole
- True
- we keep it the same
- triangles
- a temple dome
- weak bridge
- a torn flat sheet
- we measure it
- tubes
- folds make it stiffer
- triangles
- a ruler
- yeast
- True
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