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 roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
- 2.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
- 3.True or false: a mirror is needed for the paper bridge. (a) True (b) False
- 4.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) lick your fingers (d) rub your eyes
- 5.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an eggshell (c) a hollow bird bone (d) a temple dome
- 6.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) high and wobbly (d) on top of a pet
- 7.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
- 8.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the shape of the paper (c) where coins are placed (d) coins it holds
- 9.🔍 Which is the odd one out? (a) rolled paper tubes (b) a torn flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
- 10.True or false: a roof frame gets its strength from triangles. (a) True (b) False
- 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the gap between books (c) the shape of the paper
- 12.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
- 13.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
- 14.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a battery cell (c) yeast (d) coins
- 15.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
- 16.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) one flat sheet (d) a zigzag-folded sheet
- 17.⚖️ 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
- 18.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) an old stone bridge (c) a bamboo pole (d) an eggshell
- 19.True or false: yeast is not needed for the paper bridge. (a) False (b) True
- 20.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) more (d) not at all
- 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we measure it (c) we change it
- 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a magnet
- 23.True or false: a magnet is needed for the paper bridge. (a) False (b) True
- 24.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an old stone bridge (c) a round pillar (d) an electric tower
- 25.True or false: two books is not needed for the paper bridge. (a) False (b) True
- 26.True or false: an eggshell gets its strength from triangles. (a) True (b) False
- 27.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) it is magnetic (d) its curved arch shape
- 28.True or false: yeast is needed for the paper bridge. (a) True (b) False
- 29.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
- 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) where coins are placed (c) coins it holds (d) the kind of paper
- 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) True (b) False
- 32.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) zero (d) more
- 33.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
- 34.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
- 35.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) a magnet (c) a battery cell (d) turmeric powder
- 36.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we keep it the same (c) we change it
- 37.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) a wet flat sheet (d) one flat sheet
- 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) two books (d) a battery cell
- 39.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) a torn flat sheet (d) a U-shaped channel
- 40.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) one flat sheet (d) a zigzag-folded sheet
Answer key
- triangles
- False
- False
- wash your hands
- a hollow bird bone
- low and steady
- arches and domes
- the shape of the paper
- a torn flat sheet
- True
- the gap between books
- True
- tubes
- coins
- False
- one flat sheet
- we change it
- a roof frame
- True
- more
- we keep it the same
- a magnet
- False
- an electric tower
- False
- False
- its curved arch shape
- False
- strong bridge
- coins it holds
- False
- more
- True
- False
- a ruler
- we keep it the same
- rolled paper tubes
- a battery cell
- a torn flat sheet
- one flat sheet
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