December 9, 2013 ~ In taking measurements this week, the largest growth increase was the roots of the plant in 24 hour light. It gained 21 inches!!! The rest of the plant(s) didn't show as much growth as we thought. The plant that is getting no light (24 hour dark) is definitely showing signs of deficiency. The students were actually quite sad that the plant is dying, so I told them, "You are the scientists, what can we do?" Well, since they realize the importance of light they want to see if they can save the life of this poor bean plant. They are taking a change of action in their experiement and are going to see if a little plant CPR will help. Since the plant in 24 hours light seems to be showing the greatest growth, they are going to put the box to the side and put this light deficient plant under lights for the week. We'll see what happens!
An adventure for both teachers and students working, collaboratively, to observe changes in plant growth when their environment is altered to our desired conditions.
Monday, December 9, 2013
PHOTOPERIOD ~ 2 WEEKS LATER!
December 2, 2013 ~ After Thanksgiving break the 2nd graders were very excited to see what was going on under the box. Before taking a peek, they made the prediction that they thought the plant would no longer be alive. However, upon revealing the contents, they found it was still standing tall and green. However compared to the other plants, it was not growing nearly the same rate as the other two. We took some measurements and found the plant in 24 hour light is growing the fastest. The plant in normal day/night light exposure seems to be growing out, more than up. We'll see how they look in another week.
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