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