|Test 1 (two jars on the left) and Test 2 (the two jars on the right)|
TEST 1: Do you need soil to make seeds grow?
|G. predicts that the seeds with only rocks (and no soil) will not grow|
|N.S. agrees with this prediction, and thinks that the seeds with rock and soil will grow|
|And E.S. concurs - she expects that the seeds with soil and rock will grow (on the left);the seeds on the rocks will just stay on top and do nothing.|
|T. thinks they'll both grow (she uses her x-ray vision to see inside the pods that she thinks will emerge: inside are more edamame seeds)|
|J. is unsure...without worms, he predicts that the seeds won't grow at all|
TEST 4: Do seeds and plants need sun to grow?
N.B.'s prediction (below): "The one without sun will die. The one with sun will live. Outside [with sun], it's happy."
|Scientists hard at work|
|The boys sketching their observations of Test 1|
M: Even in the "no worms" jar [the seeds] grew.
|W., I., and G. examining seedling growth in both Test 2 jars|
J: The one with fabric didn't grow as much because the seed couldn't breathe. It has to breathe in carbon dioxide to live.
N.S.: With fabric, only one seed escaped and grew. Without fabric, it's growing more. There was nothing covering the seeds.
C: If fabric covered the seeds, the fabric might catch [them].
I: if there is fabric, the seeds and the plant can't get any light...[but] the plant pushed the fabric off to get sun.
L.S.: The fabric only sort of made a difference. Both [of the jars] have live plants.
P: Maybe the seed snuck out [of the fabric] if it wasn't tightly wrapped.
R: The [seeds] grew around the fabric. The one with fabric didn't do as well [as the seeds without] but it did start growing.
|A.C. and E.K. closely examining Test 3|
|The Test 4 surprise: somehow they sprouted! But how???|
|Dead and moldy|