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.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) arches and domes (c) triangles
- 2.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) wash your hands (d) rub your eyes
- 3.True or false: an electric tower gets its strength from triangles. (a) False (b) True
- 4.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
- 5.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) where coins are placed (d) the kind of paper
- 6.True or false: coins is needed for the paper bridge. (a) True (b) False
- 7.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
- 8.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
- 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) where coins are placed (c) coins it holds
- 10.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
- 11.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
- 12.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
- 13.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
- 14.⚖️ 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
- 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) coins it holds (c) the shape of the paper
- 16.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
- 17.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a bridge truss (c) a temple dome (d) a hollow bird bone
- 18.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it floats up (d) it sags and falls
- 19.⚖️ 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
- 20.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
- 21.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
- 22.True or false: one flat sheet makes a strong bridge. (a) False (b) True
- 23.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
- 24.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
- 25.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
- 26.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) sheets of paper (c) two books (d) coins
- 27.True or false: a flat tissue makes a strong bridge. (a) False (b) True
- 28.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
- 29.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) tubes (c) triangles
- 30.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds make it stiffer (d) folds add glue
- 31.🔍 Which is the odd one out? (a) a flat tissue (b) a torn flat sheet (c) a wet flat sheet (d) rolled paper tubes
- 32.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) a temple dome (c) an old stone bridge (d) an eggshell
- 33.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
- 34.🔍 Which is the odd one out? (a) a flat tissue (b) paper with folded edges (c) rolled paper tubes (d) a zigzag-folded sheet
- 35.⚖️ 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 shape of the paper (c) coins it holds (d) the gap between books
- 36.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
- 37.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
- 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) a ruler (c) two books (d) sheets of paper
- 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
- 40.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
Answer key
- tubes
- wash your hands
- True
- True
- coins it holds
- True
- False
- needed
- where coins are placed
- not needed
- True
- False
- True
- False
- the kind of coins
- strong bridge
- a hollow bird bone
- it sags and falls
- we keep it the same
- triangles
- strong bridge
- False
- triangles
- False
- False
- turmeric powder
- False
- False
- arches and domes
- folds make it stiffer
- rolled paper tubes
- an electric tower
- weak bridge
- a flat tissue
- the shape of the paper
- triangles
- needed
- yeast
- False
- tubes
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