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