Wednesday, April 22, 2009

hypothesis:Slow classical music is preffered to loud music to help the plant germinate faster.

Friday, April 10, 2009

Proposal Form

Lower Secondary Science Research Project
Proposal Form


Group Name: GroovyBrainz Class: 1B

Name of Members and Signatures:

1) Adam
2) Darren Bay
3) Zachary
4) Qi Wen

Project Title:ScienzMajorModuleProject


Problem Question:Biology(Does sound affect the growth of plants? )






1. What is the effect of sound on plants?

The speed of growth of the plants is quicker, thus sound affects the growth of plants.





Hypothesis: 1. Plants grow better with music, than plants without music.




Web-Address (Url) of Project Blog:
http://groovybrainz.blogspot.com/


Expected date of research completion: End of Module 6







Project Mentor and Signature: Mrs Soong


Apparatus and Materials Needed:

1. 2 similar types of plants- same number of leaves,
2. Same height,same soil.
3. Classical music.
4. Measuring cylinder.
5. Ruler.
6. Water.
7. Speakers









Experimental Procedure Setup:

1) Place the two plants under the sun, 2m apart.
2) Play the same volume of classical music to the plant for 2-3 hours everyday for 2 weeks.
3) Water it equally, 100ml-150ml, everyday.
4) Record the growth of the plants every 3 days.
5) Compare the growth of plants at the end of 2 weeks.
6) Repeat the experiment a few times for the final result to be accurate and find the average of the repeated experiment.






Changed Variable: The availability of music.
Fixed Variable: Volume of water, location, types of plant.
Controlled Variable(constant):
The amount of water given, the location of the plants, the distance between th eplants and music.







Science Litreature:


For decades, people have been experimenting with music and plant growth. Many amateur plant growers claim that classical music works better than loud rock and roll and heavy metal. So far, scientific studies have not backed up this claim. No one has proven that plants prefer one kind of music to another.
Plants do like noise. Plants exposed to a set frequency of sound tend to germinate more quickly, grow taller and weigh more than those kept in silence. Both 50,000 hz ultrasound (above the human hearing range) and 5,000 hz sound seem to work. Therefore, there's a good chance that plants like any sound you might play for them, including music.
Plants also like good, attentive care. If you are playing music you like for a plant, it may lead you to take better care of it. You will be more likely to carefully water and feed the plant and make sure it has good light. It might look like the music helps the plant grow, when you are actually taking better care of it.
Plants like carbon dioxide. If you are standing by a plant, singing to it, it is going to absorb some carbon dioxide from your breath. This could help it to grow more quickly.