Systems
A system is one or more working parts that work together as a functioning unit. Our lives are full of systems from man-made systems such as bicycles and cars, to nature-made systems like ecosystems.
Cause and Effect
Changes are always occurring. Every action or event results in some kind of effect. Effects can be positive or negative.
It is important to be aware of effects and be able to identify the cause in order to make effective decisions to keep the system running. In addition, it is important to consider possible effects before taking action. This process allows us to make |
Adaptation
When changes occur the system must adapt or it will no longer function correctly.
When we are tired our bodies naturally yawn. A yawn is an adaptation to send a rush of oxygen to the brain in order to provide stimulus to stay awake or alert. Animals have adapt to changing seasons. Dogs and cats shed their fur in the warmer months and grow thicker coats in the winter. |
Ecosystems
An ecosystem is a place where living and nonliving things work together. Living things depend on each other, as well as nonliving things to survive and reproduce.
Click here for a video of some of the ecosystems we will see on the Clinton River Trip.
Click the photo to go to the PowerPoint on ecosystems we watched in class.
Interdependence is a relationship in which 2 or more parts depend on one another to function or survive. Living things depend on abiotic factors like sunlight, water, soil, and air. Once the living things die the decomposers break down the dead matter and return nutrients to the soil.
Click here for a video of some of the ecosystems we will see on the Clinton River Trip.
Click the photo to go to the PowerPoint on ecosystems we watched in class.
Interdependence is a relationship in which 2 or more parts depend on one another to function or survive. Living things depend on abiotic factors like sunlight, water, soil, and air. Once the living things die the decomposers break down the dead matter and return nutrients to the soil.
The Great Lakes Water System
The Great Lakes are connected by rivers and canals. These waterways work together to allow ships to move between the lakes, connecting important cities and industries. These waters eventually flow to the St. Lawrence Seaway and out to the Atlantic Ocean allowing global trade and transport.
Click this image to see the PowerPoint used in class!
Click this image to see the PowerPoint used in class!
Numeration System
Our numeration system uses Arabic numeral, or digits 0-9, and is based on groupings of ten. Ten ones is ten. Ten tens is 1 hundred. 10 hundreds is 1 thousand, etc.
Place value organizes big numbers into ones, tens and hundreds.
Every three digits becomes a new period. The first period is the ONES, then THOUSANDS, MILLIONS, BILLIONS, etc.
Click here to see a video explaining the place value system.
Place value organizes big numbers into ones, tens and hundreds.
Every three digits becomes a new period. The first period is the ONES, then THOUSANDS, MILLIONS, BILLIONS, etc.
Click here to see a video explaining the place value system.