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