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