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