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: coins is not needed for the paper bridge. (a) True (b) False
- 2.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a temple dome (c) an eggshell (d) a bamboo pole
- 3.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
- 4.⚖️ 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
- 5.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a flat tissue (c) one flat sheet (d) a wet flat sheet
- 6.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) yeast (c) sheets of paper (d) a battery cell
- 7.🛟 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
- 8.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of coins (c) the shape of the paper
- 9.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) the same number of (d) more
- 10.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
- 11.⚖️ 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
- 12.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a zigzag-folded sheet (d) a torn flat sheet
- 13.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
- 14.⚖️ 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
- 15.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) less (d) not at all
- 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) two books (d) a magnet
- 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a mirror (c) a ruler (d) sheets of paper
- 18.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) paper with folded edges (d) one flat sheet
- 19.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
- 20.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a torn flat sheet (d) rolled paper tubes
- 21.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
- 22.🔍 Which is the odd one out? (a) a U-shaped channel (b) a flat tissue (c) rolled paper tubes (d) a zigzag-folded sheet
- 23.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) more coins (d) fewer coins
- 24.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes
- 25.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
- 26.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a wet flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
- 27.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) the shape of the paper (c) coins it holds
- 28.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
- 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
- 30.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
- 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
- 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) coins it holds (c) where coins are placed (d) the shape of the paper
- 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) sheets of paper (c) a ruler (d) two books
- 34.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
- 35.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a magnet (c) a ruler (d) two books
- 36.True or false: two books is needed for the paper bridge. (a) True (b) False
- 37.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
- 38.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) one flat sheet (d) a zigzag-folded sheet
- 39.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
- 40.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
Answer key
- False
- a bamboo pole
- False
- we change it
- rolled paper tubes
- sheets of paper
- wash your hands
- the kind of coins
- more
- we measure it
- we keep it the same
- a torn flat sheet
- weak bridge
- False
- more
- a magnet
- a mirror
- paper with folded edges
- triangles
- rolled paper tubes
- needed
- a flat tissue
- fewer coins
- arches and domes
- True
- a wet flat sheet
- the gap between books
- True
- we keep it the same
- True
- we keep it the same
- the shape of the paper
- a battery cell
- True
- a magnet
- True
- not needed
- a zigzag-folded sheet
- needed
- weak bridge
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