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