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