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: a bridge truss gets its strength from a tube shape. (a) False (b) True
- 2.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
- 3.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the triangle (d) the square
- 4.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
- 5.⚖️ 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
- 6.🛟 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
- 7.⚖️ 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
- 8.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a bridge truss (c) a round pillar (d) a bamboo pole
- 9.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
- 10.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a flat tissue (c) paper with folded edges (d) a zigzag-folded sheet
- 11.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a balloon (c) sheets of paper (d) a mirror
- 12.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
- 13.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an eggshell (c) an electric tower (d) an old stone bridge
- 14.🌉 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
- 15.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
- 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) where coins are placed (c) the shape of the paper (d) the kind of paper
- 17.⚖️ 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) where coins are placed
- 18.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
- 19.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
- 20.True or false: a ruler is needed for the paper bridge. (a) False (b) True
- 21.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
- 22.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) yeast (c) a battery cell (d) turmeric powder
- 23.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
- 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) coins (c) sheets of paper (d) two books
- 25.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
- 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) a ruler (d) two books
- 27.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
- 28.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
- 29.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) its curved arch shape (d) it is magnetic
- 30.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) more coins (d) only water
- 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True
- 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a battery cell (c) two books (d) sheets of paper
- 33.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
- 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) turmeric powder
- 35.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
- 36.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) an eggshell (c) an old stone bridge (d) a round pillar
- 37.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a flat tissue (d) rolled paper tubes
- 38.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
- 39.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
- 40.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
Answer key
- False
- not needed
- the triangle
- triangles
- we change it
- low and steady
- we keep it the same
- an eggshell
- True
- a flat tissue
- sheets of paper
- True
- an electric tower
- a zigzag-folded sheet
- False
- the shape of the paper
- where coins are placed
- True
- True
- True
- not needed
- a ruler
- strong bridge
- a mirror
- False
- yeast
- strong bridge
- strong bridge
- its curved arch shape
- fewer coins
- False
- a battery cell
- False
- turmeric powder
- True
- a round pillar
- rolled paper tubes
- not needed
- arches and domes
- needed
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