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.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) a ruler (c) sheets of paper (d) two books
- 2.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
- 3.True or false: one flat sheet makes a strong bridge. (a) False (b) True
- 4.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
- 5.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
- 6.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
- 7.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
- 8.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a mirror (c) a balloon (d) a ruler
- 9.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
- 10.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
- 11.True or false: a bamboo pole gets its strength from triangles. (a) True (b) False
- 12.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
- 13.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) rolled paper tubes (d) one flat sheet
- 14.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
- 15.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) skip washing (d) rub your eyes
- 16.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) tubes (c) triangles
- 17.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) paper with folded edges (d) a wet flat sheet
- 18.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
- 19.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
- 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a ruler (d) turmeric powder
- 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
- 22.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) an eggshell (c) a roof frame (d) a hollow bird bone
- 23.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
- 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
- 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a mirror (d) sheets of paper
- 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of coins (c) coins it holds (d) the kind of paper
- 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) two books (d) a battery cell
- 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of paper (c) coins it holds
- 29.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) two books (c) coins (d) sheets of paper
- 30.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
- 31.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the square (c) the star (d) the triangle
- 32.True or false: coins is not needed for the paper bridge. (a) True (b) False
- 33.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
- 34.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
- 35.True or false: yeast is needed for the paper bridge. (a) True (b) False
- 36.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
- 37.🔍 Which is the odd one out? (a) a wet flat sheet (b) a zigzag-folded sheet (c) paper with folded edges (d) a U-shaped channel
- 38.True or false: yeast is not needed for the paper bridge. (a) True (b) False
- 39.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
- 40.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
Answer key
- turmeric powder
- triangles
- False
- not needed
- True
- strong bridge
- tubes
- a ruler
- strong bridge
- needed
- False
- not needed
- one flat sheet
- False
- wash your hands
- arches and domes
- paper with folded edges
- more
- needed
- turmeric powder
- we keep it the same
- an eggshell
- not needed
- True
- a mirror
- coins it holds
- a battery cell
- the kind of paper
- yeast
- we keep it the same
- the triangle
- False
- needed
- True
- False
- False
- a wet flat sheet
- True
- strong bridge
- fewer coins
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