Science Fair Project

Flowers and different light sourcesAlex Pappas

Statement of the Problem

• Will flowers grow faster under different light sources?

Project Overview

• I will take two flowers and both put them under a different light source. They both got the same amount of light, soil, and water. They both stood in the light for the same amount of time each day.

Research

• Read book about flowers• Search internet for flower facts.• Searched internet for fast growing flowers.

Variables

• Independent: Amount of light• Dependent: Height of flowers• Constants: Time of day, 1 hour in sun, type of

flowers, cup of soil (12 cm), cup of water (100 mm).

• Control Group: Flower heated by the sun

Hypothesis

• Hypothesis• If flowers can grow in the sun then they can

grow under a lamp because they both give off heat

• My educated guess was that the sun would make the flowers grow faster because most plants are used to growing in the sun. The sun made the flower grow faster.

Materials

• Ruler• 1400 mm of water• 24 cm of soil • Flower (x2)• Cup for soil (x2)• Lamp• Sunlight

Procedures

1. Buy 2 of the same type of flowers2. Put 12 cm for each cup3. Put 1 flower in each cup4. Give each flower 100 mm of water each day5. Put 1 flower in sun for 1 hour6. Put one flower under lamp for 1 hour7. Take flowers out of light 8. Put them in a room temperature room overnight

Photos

Flower under lamp.

Flower under sun

Soil measured

Data/ObservationsAnalyzes

10

11.5

13

14.5

1 2 3 4 5 6 7

Flower 1 (lamp)Floweer 2 (sun)

As you can see the 2nd flower grew more.

They started out at different heights but the 2nd grew more.

Conclusion

• I concluded that the sun made the flower grow better. I gave the flower more pedals, and taller.

Possible Experimental Errors

• The errors could have been that the different heights of the flowers made one go through its growth spurt and the other already been through it.

Applications and Recommendation

• For improvements I would recommend buying flowers that are the same type. Start the project a little bit early incase there are any problems.

Works Cited

• Bodach, Vijaya. Flowers. Mankato, MN: Pebble Plus, 2007. Print

• House and Home. Web. 27 Jan. 2011. <http://www.houseandhome.org/>.

• Houseplant Care - Evergrowing.com. Web. 27 Jan. 2011. <http://www.evergrowing.com

• Pappas, Anne B. "Flower." Personal interview. 26 Jan. 2011.