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