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? Which of these is the one thing we change? (a) the kind of paper (b) the shape of the paper (c) coins it holds (d) where coins are placed
- 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) yeast (c) coins (d) a ruler
- 3.🧺 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) coins
- 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the kind of paper (c) coins it holds (d) where coins are placed
- 5.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
- 6.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a temple dome (c) an old stone bridge (d) a round pillar
- 7.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
- 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a battery cell (c) sheets of paper (d) a ruler
- 9.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bamboo pole (c) a bridge truss (d) an eggshell
- 10.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
- 11.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) an old stone bridge (c) an electric tower (d) a bamboo pole
- 12.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
- 13.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
- 14.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an electric tower (c) an old stone bridge (d) a bridge truss
- 15.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bridge truss (c) an eggshell (d) a roof frame
- 16.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
- 17.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
- 18.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
- 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
- 20.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
- 21.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) a zigzag-folded sheet (d) one flat sheet
- 22.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
- 23.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a U-shaped channel (c) a torn flat sheet (d) a zigzag-folded sheet
- 24.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) rolled paper tubes (d) a wet flat sheet
- 25.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) fewer coins (d) more coins
- 26.True or false: two books is needed for the paper bridge. (a) True (b) False
- 27.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
- 28.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the triangle (d) the square
- 29.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
- 30.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
- 31.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
- 32.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
- 33.True or false: a bamboo pole gets its strength from triangles. (a) True (b) False
- 34.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
- 35.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
- 36.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a flat tissue (c) rolled paper tubes (d) a zigzag-folded sheet
- 37.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a battery cell (c) a magnet (d) two books
- 38.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
- 39.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) turmeric powder (c) yeast (d) coins
- 40.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) rub your eyes (d) wash your hands
Answer key
- the shape of the paper
- yeast
- a magnet
- coins it holds
- not needed
- a round pillar
- strong bridge
- a battery cell
- a bridge truss
- not needed
- an electric tower
- True
- weak bridge
- an old stone bridge
- an eggshell
- True
- tubes
- we keep it the same
- we keep it the same
- needed
- one flat sheet
- more
- a torn flat sheet
- a wet flat sheet
- fewer coins
- True
- not needed
- the triangle
- False
- strong bridge
- False
- needed
- False
- needed
- True
- a flat tissue
- two books
- weak bridge
- coins
- wash your hands
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