Science Project:

Do Insecticides Stunt Plant Growth

4.0 based on 61 ratings

Research Questions:

Are insecticides harmful to humans?

Plants grow through a process called photosynthesis. This requires sunlight to take place. The chlorophyll located in the chloroplast of the plant cells grabs sunlight and starts the reactions (such as sugar) that are needed to make the plant grow. Water is also needed in the growth equation, because like humans and animals, plants need moisture to quench their thirst.

Insecticides repel bugs-bugs is not a good thing for plants (except for pollinating insects) as some of these insects drill holes and contaminate the plants.

Materials:

  • Any insecticide (don't need a huge bottle)
  • bean seeds
  • soil on the ground
  • water
  • sunlight

Experimental Procedure

  1. Plant 2 groups of seeds at a distance from each other in an outside yard. Make sure however, that they will get the same amount of sunlight.
  2. Spray some insecticide on one group of seeds. Remember which one!
  3. Observe the germination rate and growth of both of the seed groups.
  4. Every few days, spray the designated plant with insecticide.
  5. Record any difference you see in overall plant health and growth for several weeks-1 month.

Suggested Chart

Day 1
Day 2
Day 3
Day 4
Day 5
Day 6
Day 7
With Insecticide

No Insecticide

Terms/Concepts: Insecticide; Plant Growth; Photosynthesis

References:

http://www.scientificamerican.com/article.cfm?id=plant-pesticides-health

http://www.suite101.com/content/organic-pest-control-and-pesticide-a4337

Greene, Stanley A.; Pohanish, Richard P. (editors) (2005).Sittig's Handbook of Pesticides and Agricultural Chemicals. SciTech Publishing, Inc.ISBN0-8155-1516-2.

Author: Sofia PC
Disclaimer and Safety Precautions

Education.com provides the Science Fair Project Ideas for informational purposes only. Education.com does not make any guarantee or representation regarding the Science Fair Project Ideas and is not responsible or liable for any loss or damage, directly or indirectly, caused by your use of such information. By accessing the Science Fair Project Ideas, you waive and renounce any claims against Education.com that arise thereof. In addition, your access to Education.com's website and Science Fair Project Ideas is covered by Education.com's Privacy Policy and site Terms of Use, which include limitations on Education.com's liability.

Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.

How likely are you to recommend Education.com to your friends and colleagues?

Not at all likely
Extremely likely