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.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
- 2.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) low and steady (d) high and wobbly
- 3.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
- 4.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
- 5.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) a ruler (c) sheets of paper (d) coins
- 6.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
- 7.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bridge truss (c) a hollow bird bone (d) an old stone bridge
- 8.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
- 9.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
- 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the gap between books
- 11.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
- 12.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
- 13.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a flat tissue (d) a U-shaped channel
- 14.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
- 15.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the triangle (d) the star
- 16.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) fewer coins (d) only water
- 17.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
- 18.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
- 19.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) a torn flat sheet (d) a zigzag-folded sheet
- 20.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
- 21.True or false: one flat sheet makes a strong bridge. (a) False (b) True
- 22.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) skip washing (d) lick your fingers
- 23.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a roof frame (c) a round pillar (d) an old stone bridge
- 24.🔍 Which is the odd one out? (a) a wet flat sheet (b) a zigzag-folded sheet (c) paper with folded edges (d) a U-shaped channel
- 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
- 26.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) a zigzag-folded sheet (d) one flat sheet
- 27.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of coins (c) coins it holds
- 28.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
- 29.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the kind of paper (c) where coins are placed (d) coins it holds
- 30.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a round pillar (c) an old stone bridge (d) a bridge truss
- 31.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
- 32.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) a temple dome (c) an electric tower (d) a bamboo pole
- 33.True or false: a flat tissue makes a strong bridge. (a) False (b) True
- 34.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) where coins are placed (c) the shape of the paper (d) the kind of coins
- 35.⚖️ 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
- 36.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
- 37.🔍 Which is the odd one out? (a) rolled paper tubes (b) a flat tissue (c) a zigzag-folded sheet (d) paper with folded edges
- 38.True or false: two books is not needed for the paper bridge. (a) True (b) False
- 39.True or false: a balloon is needed for the paper bridge. (a) False (b) True
- 40.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
Answer key
- not needed
- low and steady
- False
- weak bridge
- turmeric powder
- False
- a hollow bird bone
- not needed
- False
- the gap between books
- we measure it
- triangles
- a flat tissue
- we keep it the same
- the triangle
- fewer coins
- strong bridge
- False
- a torn flat sheet
- True
- False
- wash your hands
- a roof frame
- a wet flat sheet
- we keep it the same
- one flat sheet
- the kind of coins
- strong bridge
- coins it holds
- a bridge truss
- True
- a temple dome
- False
- the shape of the paper
- we keep it the same
- tubes
- a flat tissue
- False
- False
- True
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