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Environmental Pollution: The effect of carbon dioxide on plant growthFeatured science projectScience project video

Procedure

  1. Find a place where your experiment can sit for the week.
  2. Check the seeds to make sure they have partially sprouted. Set them aside.
  3. Make a control experiment by putting one seedling underneath an upside-down soda bottle. Also include a thermometer.
    sprouting seedlings for carbon dioxide plant experiment
  4. Set the control aside. Now, get ready to make the experimental system.
  5. Measure 15 g of baking soda into the shallow dish or paper cup.
  6. Measure 30 mL white vinegar in your graduated cylinder.
  7. Slowly add the vinegar to the cup with the baking soda.
  8. Carefully place one peat cup and the cup with the vinegar mixture under the soda bottle. Put the thermometer underneath, as well.CO2 science project experiment setup
  9. Wait 20 minutes, and record your observations in “Day 1” of the observation table below. Do this for both the control and the experimental systems.
  10. Make sure to measure the plant’s height with your ruler. Do this on the outside of the bottle, as we do not want to disrupt the system.
  11. Record data on your chart every day.
  12. On the fifth day, graph both plant’s growth on axes comparing time and height.

 

Observations

EXPERIMENT plant with vinegar mixture

Day 1

Day 2

Day 3

Day 4

Day 5

Day 6

Day 7

Can you see water vapor / droplets? Yes or no.

             

Temperature

             

Plant size in cm

             

CONTROL plant without vinegar mixture

Day 1

Day 2

Day 3

Day 4

Day 5

Day 6

Day 7

Can you see water vapor / droplets? Yes or no.

             

Temperature

             

Plant size in cm

             

 

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    Complexity level:
    7
    Project cost ($):
    Time required:
    Approximately 1 hour to complete initial set-up, with 15 to 30 minutes daily observation and discussion for five days.
    Material availability:
    Safety concerns: