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