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