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