Friday, October 31, 2008

FOOD CHAIN PROJECTS

Thanks to all the fourth-graders who handed their food chain projects in on time. I've really enjoyed reading them and want to compliment many of you on your fine work. We've even enjoyed a few food chain skits that were great, as well as a puppet show. Science grades will be handed in this week, so if you didn't hand in your project, this will be reflected in your grade. Please get your project to Ms. Seitz as soon as possible. We are doing some very important work and it is your responsibility to hand your work in on time. Thank you.

Tuesday, October 21, 2008

And next in the food chain........Anoles!


That's right. Our terrarium ecosystems have a new occupant, the green anole, also known as the American chameleon because they change color from brown to green. The anoles eat crickets and are considered SECONDARY CONSUMERS. And because they eat crickets, they are CARNIVORES or meat eaters. They are also PREDATORS because they hunt for their food. Anoles live in Florida and love to climb trees rather than crawl on the ground. When the males get angry or when they are looking for a mate, the hanging skin below their mouths puffs up, sort of like a frog. This loose skin is called a DEWLAP. Okay, so let's recap our FOOD CHAIN so far. The chain starts with the SUN. Plants use the sun's energy to make food. That's why plants are called PRODUCERS...they produce their own food. Plants and in the case of our terrarium, grass, then becomes food energy for CRICKETS (PRIMARY CONSUMERS), which in turn, become food for ANOLES (SECONDARY CONSUMERS).

REX GETS TERRITORIAL. NINJA IS REMOVED FROM TANK!


After a year and a half of living peacefully together, Rex has gotten territorial and began attacking little Ninja this week. To keep Ninja safe, Ms. Seitz has taken Ninja home and set him up in a tank in her kitchen. Rex seems to be sulking now that he is alone in his tank in Room 409. Ninja seems a bit lonely in his kitchen aquarium. Hopefully, Rex and Ninja can be reunited in the future, but for now, they need their own space.

Monday, October 6, 2008

The Crickets Have Arrived!


Fourth-graders are just finishing up their study of the first link in the food chain--plants--also known as PRODUCERS because they produce their own food (using sunlight, air and water). Now for the next link--CRICKETS--also called PRIMARY CONSUMERS. PRIMARY CONSUMERS are always HERBIVORES because they eat PRODUCERS, which are always plants. They are eating rye grass in our terrariums.
Crickets are insects. Only the males chirp, by rubbing their wings together. It is their love song. They live in fields, grasses and meadows and are nocturnal.
Students will be taking a close look at crickets to distinguish between males and females. They will also draw scientific illustrations to accurately depict the anatomy of a cricket.