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