Over the past week, I have been weighing some of the tadpoles in the kindergarten classrooms. Weights ranged from 0.2 grams to two tadpoles that weighed 1.4 grams. These tadpoles are housed in the Cohen classroom, in a separate tank, full of vernal pool water. The class has a difficult time viewing the tadpoles and call the tank, “The Lagoon”. This morning, I received the following video from Mrs. Cohen….the first of the froglets.
April 13, 2016: trap on bottom left
Today Mrs. Benson and myself traveled back down to the vernal pool to check on the Pool Cam and to check on the tadpole eggs. Where last week’s trip was frigid, today’s was more seasonal, and it felt more like spring. On the path before the bridges, there was an emerald carpet and the birds were out and chirping as we made our way to the pool. Here is the view of the pool on this Wednesday.
The tadpoles in the kindergarten classrooms hatched about ten days ago. Last week, the trap was completely frozen into the pool. This week, it was a lot easier to get at. However, this week, the pool was completely clear of ice and crystal clear. When I pulled the trap out…..there were still tadpole eggs. So, the warmer environment of our classrooms seems to contribute to the tadpole eggs hatching earlier than those in the vernal pool.
After finally capturing one picture of the elusive “Chubs”, Mrs. Benson and I decided to retrieve the Pool Cam to put it onto the Chubs Problem (aka how does that squirrel reach the bird feeder on Mrs. Cohen’s window). So, a little after 4:20 p.m., we headed back down for our second trip of the day. And this trip was even more interesting than the first one. As we got closer, we saw the pool covered by different colors. It looked like a piece of artwork. Seven hours later, things looked totally different. Any ideas on what happened over the day? And our final unexpected surprise shows up at around 7 seconds of this video on our way back from our afternoon trip.
April 6th 2016 at the Edge of the Vernal Pool
April 6, 2016: This week has been a wild one weather wise! Thanks to our vernal pool cam, you can see the week documented in both pictures and with numbers. Please post any comments your students made about this past week after looking at the slide show. How did this weather impact our amphibians in the pool?
April 6, 2016: Last week, I gave all the kindergarten classes a challenge in predicting whether the eggs in the classroom or those kept in a trap at the vernal pool would hatch first. When classes arrived on Monday morning, they had discovered that many had tiny tadpoles in their tanks. This morning, Mrs. Benson and I traveled down to the vernal pool to check the trap. After a wacky week of weather (last Friday was 70 plus degrees and then we had two days of snow), we weren’t sure what we would find.
The trap, encased in ice
After traveling through the snow covered woods, we arrived at the edge of a frozen vernal pool. I had to break through the ice to reach the frozen trap. After turning the trap upside down, I discovered the egg mass, still intact at one corner of the trap.
So this week’s challenge question is: What do you think will happen to the eggs at the vernal pool trap? We know that wood frogs have amazing super powers that allow them to become “frogsicles” in the winter. What do you
Eggs are on the bottom right corner of the trap
may happen to the eggs?
Here is a challenge for our kindergarteners. Yesterday, I kept some tadpole eggs in a trap at the vernal pool. You are all raising tadpole eggs in your classroom. Which ones do you think will hatch first – the ones in the trap at the vernal pool or the ones in your classroom? If each classroom can provide their claim and their reasoning to this question, we can all learn as scientists about this question.
The wood frog tadpoles are in this trap
Please post your answers as a response below this post.
Room 4, Country School, thinks that our caring environment will help the eggs hatch faster.
Country School Room 1 believes our well-protected classroom eggs will hatch before the vernal pool eggs.
We learned that some animals have bright colors on their bodies to warn predators that they are poisonous. Click here to listen to visiting field biologist Emilie explain the message the bright yellow spots on this Yellow Spotted Salamander sends.