Showing posts with label insects. Show all posts
Showing posts with label insects. Show all posts

Friday, January 2, 2015

Secondary Roots appear (observational botany 3)

Who: All J1 and J2
Where: at the dining table
When: after dinner (observations from 28 December/day 27)

More progress on the avocado sprout. We had to transfer the pit as our previous glass bowl was too shallow and started to restrict the growth of the main root. Pictures courtesy of J1 this time.

Overview
Close-up of the split

Root view
Attention has drifted?


Observations
J1
  • if we measure from outside the pit, the sprout is about 1 inch tall
  • the sprout outside of the pit is light green with some red dots
  • off of the main sprout, there are 6 tiny sprouts that look like little thorns, 4 above the pit and 2 inside
  • there are also some black lines on the pit (J0 note: these are from where we cut the original avocado)
  • the main root is flexible, the sprout only flexes a bit along the crack of the pit
  • the secondary roots are more flexible than the main root.
J2
  1. the avocado sprout looks like J1's nose (no one else agreed with this observation)
  2. the part of the sprout inside the pit is white
  3. the root has 5 pooplish (J0: what is this? J2: it is a little cm, daddy)
  4. the toothpick are 5 peebolo (
Measurements:
the whole rig: 550 g
the rig less the pit: 486 g
from which we conclude that the pit plus 3 toothpicks: 64 g (unchanged from last measurement)

length of stem above the pit: 3.2cm (doesn't directly compare with our previous measurements)
length of main root below the pit: 2.9 cm (almost 1 cm longer than last time we measured)

Note: 3 days later on the 31st, the lengths were 6.5 cm above the pit and 14.5 cm total length. There was a striking and obvious growth spurt.

Sunday, December 28, 2014

Sprouting! (observational botany 2)

Who: All Js
Where: at the dining table and in front of our house
When: after lunch (observations from 19 December/day 18)

Avocado

Our avocado pit has made some progress.



J1's observations
  • the root has sprouted
  • maybe it is actually upside down and the avocado is confused?
  • the pit split in the middle.
  • there is a sprout in the middle
  • some of the pit has peeled off
  • the exposed pit is a bit more rough than when we examined it last week. it feels like bumpy wax.
J2's observations
  1. Maybe it is actually upside down and the avocado is confused?
  2. the avocado pit looks like it is going to poop on us (referring to the emerging root)
  3. the exposed pit is smooth
  4. the calculator is 9.5 cm long
J3's observations <made at dinner, had been napping while the older two discussed>
  • There's a plant!
  • These are floss, we use it to clean our teeth (gesturing to show how)
  • Oh, some of the *this* fell off (noticing that dried skin from the pit was in the bottom of the water bowl from when one of the older two peeled it off and dropped it in).  
We also had a discussion about the division of the pit into two halves. When we started, there wasn't any clear indication that it would cleave along this line. We were wondering if there was some mechanism to prevent it from cleaving where we placed a toothpick, if the splitting location is random, or if there is a clear place it will split. I guess we add these to our curiosity list.

Measurements
3 toothpicks: 0 gr on our scale, indicating that they are less than 1/2 gram
The avocado pit and 3 toothpicks together was 64 grams (J2 noted this is 8 x 8)

The sprout in the middle of the pit and extending down was 4.5 cm long.
J0's nose is 6 cm long
J1's nose is 4.5 cm long, so the same as the sprout.
From end to end, the pit and root sprout are 7 cm.
The root protrusion is 2 cm.

When we started, we estimated the pit's mass 56 grams, (J2 remarks, 56 = 7.4833147 x 7.4833147)

J1 measured me with the tape measure and proclaimed that I have 101 kg of fat. His reasoning: some 
distance around was 101 cm and he assumed I must be 1 kg per cm of perimeter along that slice.

J2 added, the following.
√6 = 2.4494897
√4.5 = 2.1213203
I asked J2 if these square roots had any meaning, in the context of our seed. He said, "no, it is just for fun."

Introducing: Orange seeds

Last sunday (13 December) we planted some orange seeds. Vaguely following these instructions, we used two methods:
  1. Planting in soil, keeping the soil covered and most: no developments yet
  2. Planting in a pool of water with some soil and dried leaves: interesting developments this week
Our "interesting" case this week

So, what happened with the soaking seeds? Here are our observation notes:
  • Oh, the seeds are sprouting!
  • Hmm, the sprouts seem to be wiggling!
  • Those aren't sprouts, they are larvae, probably mosquito larvae
  • Ooh, it smells like cows. It stinks
We poured it out on the street in front of our house, in the sun, and watched the water dry out. We observed the larvae moving around in the small puddle of mud as it dried and talked about what they needed to survive. J2 noticed that there was a storm drain a meter away from the puddle and asked what would happen if they went down the drain. Then we talked about whether the could get to the drain (having to cross a meter of dry ground) and how they could know that there was a safe destination on the other side. We made conjectures about their senses and ability to communicate:
  • probably cannot see/no eyes
  • probably cannot talk, but we guess the do have a mouth to eat
  • not sure about ears
  • cannot read or write
  • no ability to communicate with adult mosquitos, ants, humans, or other creatures
In summary, we concluded that their knowledge is restricted to the limited part of the universe that their limited senses can observe directly. Can you see the editorializing?

As you might expect, fire was introduced at some point in the conversation, we ended up burning a handful of dry leaves and some paper scraps. As you do, you know.