Something about human

Today science info

FIRST HUMANS IN AUSTRALIA DATED TO 50,000 YERS AGO

Analysis of sediments at two grave sites at Lake Mungo confirms that Australia is the site of the world's oldest known burial with red ochre and the oldest cremation, and provides additional evidence that early humans first reached Australia about 50,000 years ago. Mungo Man and Mungo Lady, as they are known to the local Aborigines, both died and were buried around 40,000 years ago, reports a team of scientists.

living things and non- living things

Living Things vs Non-living Things

Living things and Non-living things are subjects that one has to master. The basic of all sciences relies on the student learning to differentiate between the two. There are things that are obvious to tell apart, however things that are living but are hardly moving may get confusing at times.

Living things

Living things are things that are alive, as the word implies. Alive could mean a couple of things: breathing, growing, moving and reproducing. However not all characteristics would automatically determine if the object is living or not. Examples of living things are: animals, plants, insects, bacteria and of course, humans. All types of living things needs energy to keep on existing, this is done through several means or methods.

Non-living things

In the meantime non-living things are the exact opposite of living things. They do not exhibit any growth and they do not have a life of its own. They do not eat, sleep, reproduce, and respond to any forms of stimuli. There are non-living things however that can grow in size. An example would be icicles formed from rain and snow. They grow in size however they are not living.

Difference between Living and Non-living Things

Living things exhibit life while non-living things does not. Living things grow, produce and move; non-living things do not. Living things needs energy and can even produce their own energy just like the plants, while non-living things do not need energy since they do not grow. Living things move, even plants have movement even if it is limited. Non-living things on the other hand does not move unless influenced by another source. If living things can grow, they most absolutely have the capacity to die; non-living things do not die because they are not alive to begin with.

It may be an easy subject to tackle however once you delve into the specifics of each subject, you will soon realize that there are characteristics that makes distinguishing between the two very difficult.

basic needs of animal

BASIC NEEDS OF ANIMALS

1. Like humans, animals also have basic needs.


2. The basic needs of animals are air, food, and shelter.


3. Animals need air to breathe. Different 
    animals breathe in different ways.


4. Animals drink water to:
    a) stay healthy
    b) contorl body temperature and
    c) remove wastes from their body


5. Animals need to eat to stay alive. 


6. Animals need food to grow and to gain 
    energy.
7. Animals also need shelter to protect 
    themselves from  danger and bad   
    weather like hot, cold, rain and storms.


8. There are various types of shelters for 
    animals. 

Basic needs of plants

Tumbuhan adalah benda hidup. Tumbuhan juga memerlukan ‘makanan’ untuk membesar dan hidup subur. ‘Makanan’ tersebut dikenali sebagai keperluan asas.
‘Plant is a living thing. Plant needs ‘food’ to grow and stay healthy. This ‘food’ is call basic need.'

Keperluan asas bagi tumbuhan ialah air, udara (gas karbon dioksida) dan cahaya matahari.
‘Basic needs of plant are water, air (carbon dioxide gas) and sunlight.’

Tumbuhan mendapatkan air melalui akarnya dan mendapatkan udara dan cahaya matahari melalui bahagian daunnya.
'The plant gets the water via the roots, the plants get the air and the sunlight via it leaves.'

Apabila tumbuhan mendapat keperluan-keperluan asasnya yang mencukupi, maka tumbuhan itu boleh membesar dan hidup sihat, segar dan subur.
'When the plant gets the basic needs in the sufficient amount, so that the plant can grow and stay healthy.'

Photosynthesis

Process of Photosynthesis

The process of photosynthesis is conveniently divided into two parts: the energy-fixing reaction (also called the light reaction) and the carbon-fixing reaction (also called the light-independent reaction, or the dark reaction).