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