How+Much+Light+the+Plant+Gets+a+Day+(Chelsea+and+Romi)

Plant Project Chelsea & Romi Problem: Which of my three plants will grow the most in a certain amount of time if one has no light, one has light twelve hours a day, and one has light six hours a day?

Hypothesis: I think the one with light twelve hours a day will grow the most because that is naturally how a plant grows in the wild. (Chelsea)

Hypothesis: My hypothesis is that the plant with 12 hours of light will grow faster then the plant with six hours of light, and the plant with no light. I think this because plants need light to grow and produce sugar, and if they don’t get that they will grow less because they don’t have enough energy. (ROMI)

Materials: Three cups, three seeds, two lamps, one dark space, soil, two pieces of black paper, and water.

Procedure: Fill each cup half way with soil. Burry one seed in each cup. Find one dark space. Put one cup in the dark space. Put the other two under their own lamp. Make sure one gets light six hours a day and one gets twelve hours of light a day. When he lamps are not on have a black piece of paper over the cup. Water once a day not including days you are not at school.

Variables: The variable that changes is the amount of light. The variables that change are the type of light, the dimness of the light, the amount of water, the type of water, the type of soil, the amount of soil, the amount of space, the amount of oxygen, the same nutrients, and the same amount of nutrients. We are measuring the height of the plant and using observations to see which plant has the most successful growth.

Observations tuesday,oct 6 Today we planted three bean plants. (ROMI)

Observations Thursday,oct 8 There is no visible growth for any of our 3 plants today. on Tuesday we planted the 3 bean plants. We watered the plants with 1 table spoon of water for all the plants.(ROMI)

observations monday, oct 12 today I saw the 0 hour plant has germinated it is now 1 cm but the others have not .romi

Observations oct thursday, 15 There is no visible growth for the plants that get hours of light the plant that gets 0 hours light has grown a bit 3 cm, which is weird because I thought the plants with light would have grown instead of the plant with 0 hours because plants need energy from light to grow but I think that I was using to powerful a lightbulb so it could have dried up the plants with light. romi

observations friday, oct 16 Today the 6 hour plant germinated 2 cm. The 0 hour plant is 5 cm. The 12 hour has not germinated. romi

chelsea's Observation-October 19th, Monday Our 0 hours of light plant has seemed to grow the most and is very tall it is 16 cm. The 6 hours of light plant has grown a second most 12 cm and the 12 hours of light plant has grown the least and hasn't even sprouted. That os the complete opposite of my hypothesis so we are going to do a trial 2.

Romis observations november 2, Monday

Our 0 hour plant has broken. 12 hour is 17 cm and germinated last week, and the 6 hour plant is 20 cm so far the tallest plant.

Romis observations november 5, thurs our 0 hour plant is growing again which is very odd and has grown an furry skin the 12 hour is weak but 17 cm has a weird silverish coat around the leaf .



Nov 13 friday 2009 Romis observations

The plants have not changed in growth. The 0 hour plants does not seem to drink water and has grown black around the leaves i think it is rotting. The 12 hour plant needs a support to stand straight and has grown the silver coating around the leaves. The 6 our plant has not changed.


 * date || 6 hour || 12 hour || 0 hour ||
 * oct 6 || 0 cm || 0 cm || 0 cm ||
 * oct 8 || 0 cm || 0 cm || 0 cm ||
 * oct 12 || 0 cm || 0 cm || 3 cm ||
 * oct 15 || 0 cm || 0 cm || 5 cm ||
 * oct 16 || 2 cm || 0 cm || 16 cm ||
 * oct 19 || 12 cm || 20 cm || 16 cm ||
 * nov 2 || 17 cm || 20 cm || dead ||
 * nov 5 || 17 || 20 || alive again 15 ||

Chelsea's Observation- Friday, November 13, 2009. Not much changed. All the plants grew a little bit. The six hours of light plant has grown about 2 centimeters. Same with the twelve hours of light plant and the 0 hours of light plant. The six hours of light plant is the tallest and the 0 hours of light plant is the shortest.

Chelsea's Conclusion It turns out that my hypothesis was wrong. The six hours of light plant ended up being the tallest. Though the 0 hours of light plant is the healthiest. Which I do not understand. Some of the human errors were that we did not water everyday and we put the 0 hours of light plant under the sink where it was probably getting more moisture so it was growing more and thats why it grew so much. We wanted to see which plant would grow the tallest out of a plant that gets 0 hours of light a day, one that gets 6 hours of light a day, and one that gets 12 hours of light a day. I think maybe we should have done a trial 2.