Chia Seed Lab
By: Clare Drobny and Ellie Flynn
Does the amount of chia seeds in a pot affect how tall they grow?
Dependent variable: Height (cm)
Control: One chia seed
Standardized/controlled variables: size of chia seed, spacing between seeds when planted, and amount of soil and water they are given
Extraneous variables: uneven amount of sunlight
Fill 3 dixie cups with same amount of soil.
Put 1 seed in the middle of the soil about an ½ inch deep in the first dixie cup and label this cup 1 (control).
Take second cup and place 4 seeds within 1 square inch of soil and press them in 1/2 inch deep. Label this cup with a 4.
Put the remaining 8 chia seeds within 1 square inch evenly spaced out. Place the seeds 1/2 inch deep. Label this cup with an 8.
Water the seeds every day for 9 days (not including weekends)
Measure and water each weekday. Do not water on weekends.
After 9 weekdays compare the heights of the sprouts with how close they were to each other.