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