Transpiration Experiment Worksheet
What you do (Roots in, leaves out): 1. Water the potted plant well. 2. Slip a clear plastic bag over a leafy branch. 3. Close it gently with a rubber band — not too tight. 4. Leave it in the sun for a few hours, then look for drops.
NameDateTime takenScore ___ / 40
- 1.🛟 Why must a plastic bag never go over anyone’s head? (a) it changes colour (b) it can block breathing (c) it gets wet (d) it is too big
- 2.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “sun or shade”? (a) we keep it the same (b) we change it (c) we measure it
- 3.True or false: hold up the leaves is a job of the stem. (a) True (b) False
- 4.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) vinegar (c) a few hours (d) a battery cell
- 5.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: amount of water drops is what we measure. (a) False (b) True
- 6.🧺 Do we need a clear plastic bag for the leafy bag test? (a) not needed (b) needed
- 7.🪴 Which of these is a job of the roots? (a) make food in sunlight (b) hold up the leaves (c) hold the plant in soil (d) give out water vapour
- 8.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is the one thing we change? (a) the same kind of bag (b) the kind of plant (c) amount of water drops (d) sun or shade
- 9.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) vinegar (b) a potted plant (c) a few hours (d) a clear plastic bag
- 10.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a potted plant (c) a battery cell (d) sunlight
- 11.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny water drops (b) nothing at all (c) salt crystals (d) tiny insects
- 12.🛟 How should the plastic bag be tied around the branch? (a) gently, not too tight (b) with sharp wire (c) as tight as possible (d) with a hot glue gun
- 13.🪴 Which of these is a job of the stem? (a) make seeds (b) make food in sunlight (c) hold up the leaves (d) hold the plant in soil
- 14.True or false: make food in sunlight is a job of the flower. (a) False (b) True
- 15.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a mirror (b) a potted plant (c) a clear plastic bag (d) a rubber band
- 16.🧺 Which of these is needed for the leafy bag test? (a) sunlight (b) vinegar (c) turmeric powder (d) a mirror
- 17.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the kind of plant”? (a) we change it (b) we measure it (c) we keep it the same
- 18.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is what we measure? (a) sun or shade (b) amount of water drops (c) the kind of plant (d) the time we wait
- 19.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “amount of water drops”? (a) we measure it (b) we change it (c) we keep it the same
- 20.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) veins (b) roots (c) petals (d) stomata
- 21.True or false: sunlight is not needed for the leafy bag test. (a) False (b) True
- 22.True or false: make food in sunlight is a job of the stem. (a) False (b) True
- 23.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) both the same (b) the cool cloudy day (c) neither of them (d) the hot sunny day
- 24.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) a rubber band (c) a clear plastic bag (d) vinegar
- 25.🪴 Which part of a plant does this job: give out water vapour? (a) leaves (b) stem (c) flower (d) roots
- 26.🪴 Which part of a plant does this job: hold up the leaves? (a) leaves (b) roots (c) stem (d) flower
- 27.🧺 Which of these is not needed for the leafy bag test? (a) a mirror (b) a rubber band (c) sunlight (d) a potted plant
- 28.🪴 Which of these is a job of the flower? (a) make seeds (b) carry water upward (c) hold up the leaves (d) take in water from soil
- 29.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the size of the plant is the one thing we change. (a) False (b) True
- 30.🪴 Through which part does a plant take in water from the soil? (a) the flowers (b) the roots (c) the fruits (d) the leaves
- 31.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the kind of plant is what we measure. (a) False (b) True
- 32.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the size of the plant is what we measure. (a) True (b) False
- 33.🧺 Which of these is not needed for the leafy bag test? (a) a rubber band (b) a clear plastic bag (c) a few hours (d) a magnet
- 34.True or false: a battery cell is not needed for the leafy bag test. (a) False (b) True
- 35.🪴 Which of these is a job of the stem? (a) make food in sunlight (b) carry water upward (c) make seeds (d) take in water from soil
- 36.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is kept the same? (a) amount of water drops (b) sun or shade (c) the time we wait
- 37.True or false: sunlight is needed for the leafy bag test. (a) True (b) False
- 38.📘 What do we call plants giving out water vapour from their leaves? (a) reflection (b) digestion (c) germination (d) transpiration
- 39.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the kind of plant is the one thing we change. (a) False (b) True
- 40.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the kind of plant is kept the same. (a) True (b) False
Answer key
- it can block breathing
- we change it
- True
- a few hours
- True
- needed
- hold the plant in soil
- sun or shade
- vinegar
- a battery cell
- tiny water drops
- gently, not too tight
- hold up the leaves
- False
- a mirror
- sunlight
- we keep it the same
- amount of water drops
- we measure it
- stomata
- False
- False
- the hot sunny day
- vinegar
- leaves
- stem
- a mirror
- make seeds
- False
- the roots
- False
- False
- a magnet
- True
- carry water upward
- the time we wait
- True
- transpiration
- False
- True
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids