Created by:Created by:FranciscoFranciscoMelissaMelissaTyreekTyreekEduardoEduardo

Experiment #1Experiment #1

PhototropismPhototropism

Objective:Objective:To see if plants follow To see if plants follow the light in a mazethe light in a maze

HypothesisHypothesis

I think that the I think that the plant will follow the plant will follow the maze all the way maze all the way around till the end.around till the end.

Materials:Materials: Cardboard box with a lidCardboard box with a lid ScissorsScissors Light source Light source A growing plantA growing plant Cardboard to make the mazeCardboard to make the maze Water (to water the plant as needed)Water (to water the plant as needed)

Activity:Activity: 1. Build a plant maze out of a 1. Build a plant maze out of a

cardboard box like the one shown cardboard box like the one shown in the next slide. Use a sprouted in the next slide. Use a sprouted sweet potato or a sturdy bean sweet potato or a sturdy bean seedling. Face the outside seedling. Face the outside opening toward a bright light or opening toward a bright light or window.window.

2. Put a light-proof cover on the 2. Put a light-proof cover on the maze. You may remove the cover maze. You may remove the cover each day to see if the plant each day to see if the plant needs watering and to check on needs watering and to check on its growth.its growth.

My observationsMy observations 1.By day 2 the plant got through the first 1.By day 2 the plant got through the first

opening.opening.

2. By day 4 the plant got through the second 2. By day 4 the plant got through the second opening.opening.

3. By the second week the plant got through 3. By the second week the plant got through the third opening.the third opening.

4. By the end of the 3 week the plant finally 4. By the end of the 3 week the plant finally came out the last hole.came out the last hole.

ConclusionConclusionThe plant came out as I The plant came out as I suspected then it came suspected then it came out nice through out the out nice through out the last hole .The plant died 3 last hole .The plant died 3 days later.days later.