ecosystem

What is an ecosystem? (form)

An ecosystem includes all of the living things (plants, animals and organisms) in a given area, interacting with each other, and also with their non-living environments (weather, earth, sun, soil, climate, atmosphere). 
meaning of ecosystems
In an ecosystem, each organism has its' own niche or role to play.

Consider a small puddle at the back of your home. In it, you may find all sorts of living things, from microorganisms to insects and plants. These may depend on non-living things like water, sunlight, turbulence in the puddle, temperature, atmospheric pressure and even nutrients in the water for life. (Click here to see the five basic needs of living things)


What are the types of ecosystems?(form)

There are essentially two kinds of ecosystems; Aquatic and Terrestrial. Any other sub-ecosystem falls under one of these two headings.

Terrestrial ecosystems
Terrestrial ecosystems can be found anywhere apart from heavily saturated places. They are broadly classed into:

The Forest Ecosystems
They are the ecosystems in which an abundance of flora, or plants, is seen so they have a big number of organisms which live in relatively small space. Therefore, in forest ecosystems the density of living organisms is quite high. A small change in this ecosystem could affect the whole balance, effectively bringing down the whole ecosystem.

source:
http://www.ecosystem.org/

Water contamination

What is water pollution?

Water pollution is the

 contamination of water bodies 

(e.g. lakes, rivers, 
oceans,aquifer

ers and groundwater), very often 

by human activities.


Reference:

souerce:http://eschooltoday.com/ 

energy transformation

                                                                                                                                              June 10th  
What is energy transformation?

The conservation of energy principle states that energy can neither be destroyed nor created. Instead, energy just transforms from one form into another. So what exactly is energy transformation? Well, as you might guess, energy transformation is defined as the process of changing energy from one form to another.

Examples of energy transformation

There are so many different kinds of energy that can transform from one form to another. There is energy called chemical energy, heat energy ,electrical energy, fission nuclear energy, mechanical energy.

           What are the pros and cons of                                   chemical and electrical energy?                                                (Consequence)

videos:
https://youtu.be/y_omJiYB2gk

Sources:

 http://study.com/

https://www.google.com.pe/search?q=energy+transformation

What are some types of energy?

Mechanical energy

Mechanical energy is often confused with Kinetic and Potential Energy. We will try to make it very easy to understand and know the difference. Before that, we need to understand the word ‘Work’. 

Mechanical energy is the sum of kinetic and potential energy in an object that is used to do work. In other words, it is energy in an object due to its motion or position, or both. In the 'open door' example above, I possess potential chemical energy 

Electrical energy

We generate electrical energy whey we succeed in causing these electrons to move from one atom to the other, with the use of magnetic forces. 

Chemical energy

Chemical Energy is energy stored in the bonds of chemical compounds (atoms and molecules). It is released in a chemical reaction, often producing heat as a by-product (exothermic reaction). Batteries, biomass, petroleum, natural gas, and coal are examples of stored chemical energy. 

source: retrive from june 3rd,2016 from  http://www.eschooltoday.com/