Without healthy organs, it is difficult to even survive and lead a normal life. Your eyes, nose, skin and tongue need to be clean without any dirt.

There are 4 main stages of water cycle as:
Evaporation: Heat from the sun causes water on Earth (in oceans, rivers, ponds, lakes etc) and from plants, transipation to evaporate and rise into the sky in the form of water vapour. 
Condensation: Water vapours condenses on dust particles to form tiny droplets of water.These droplets come together to form a cloud. This is called condensation.
Precipitation: Waterfalls from sky in the form of rain, snow, hail, etc This process is called precipitation.
Collection: Water flows to the rivers which then flows into oceans. Water evaporates into the sky again and this cycle continues again.

A family consisting of a pair of adults and their children is called small family or nuclear family. A family is said to have small size if it comprises father, mother and few (usually one to four) children. A large family size is made of father, mother and more than four children. Children in small families, especially first and only children, tend to have higher school and personal achievement levels than do children of larger families. The financial costs of maintaining a household are lower. It is easier for both parents to combine careers with family life.

House is a place in which we live. All living being such as animals birds humans need a place to live. It keeps us safe from bad weather such as rain, sunlight, storm and other natural disasters. That's why we need a house. A house is a place where the family lives together all of us need a house to live in a house keeps us safe it protects us from heat. and rain it keeps us warm during the cold winter. it protects us from the wild. and dangerous animals parts of a house is made up of walls.

Feathers on a bird's wings provide a lightweight but solid surface to push against the air. As the wing flaps downward, the feathers mesh together, then part to allow air through as it sweeps upward again. As well as allowing it to fly, a bird's feathers keep it warm and dry. Feathers perform a number of functions for a bird: 1) They provide insulation, body temperature of most birds is maintained at around 40 C; 2) Feathers allow for flight; 3) Feathers control what a bird looks like by supplying the bird with colors.

In vascular plants, the roots are the organs of a plant that typically lie below the surface of the soil. Roots can also be aerial or aerating, that is, growing up above the ground or especially above water. Roots act like straws absorbing water and minerals from the soil. Tiny root hairs stick out of the root, helping in the absorption. Roots help to anchor the plant in the soil so it does not fall over. Roots also store extra food for future use.

If we save water now, we are helping to ensure a water supply adequate for future generations. Saving water saves money.

• Ask first and follow their lead. Don't assume people need help.
• Speak clearly, listen well.