Science

Today in science, we talked about:

• the human body and about the nervous system.  Specifically, we learned that nerves are connected to the brain.
• ecosystems and what they are.  They are places where abiotic (non-living) and biotic (living) entities depend on each other.
• changes in our terrariums and aquariums, like the water in the aquarium decreasing and the plants in the terrariums grew.
• food chains.  A video said that the food chain is like a game with 4 levels that look likes a pyramid.   The first level consists of herbivores and where plants die and decompose.  The second and third levels include carnivores.  The fourth level includes worms, bacteria and bugs.