Things can be easily grouped into living things and non-living things.
To decide whether something is living or non-living, we observe its characteristics.
1. Living things need air, water and food to survive. Without air, food and water, living things will die.
2. Living things can grow. As a living thing grows, it may increase in height (grow taller), increase in size (grow fatter) and change in appearance (seedling becomes a tree).
3. Living things can move by themselves. They move to look for water, food, shelter and mate. They also move to escape from danger.
4. Living things respond to changes. (Mimosa plants will close their leaves when touched. Children fan themselves when they are hot.)
5. Living things reproduce to ensure that their own kind exist.
Showing posts with label Living Things. Show all posts
Showing posts with label Living Things. Show all posts
Sunday, July 13, 2008
Saturday, October 13, 2007
Living Things and Non-living Things (2007)
I think most of you will have no problem with this topic. The problem lies with the way you answer the questions during examination. Most of the time, the questions will give you some characteristics of living things and ask you to explain a) How you know that it is a living /non-living thing? or b) What is/ are the missing characteristics?
So, answer to the questions, DO NOT just 'throw out' all the characteristics. Read the questions to identify what are the characteristics, given and what are the missing ones.
Characteristics of Living Things:
1. They need air, water and food. Animals either hunt or look for food. Plants make their own food. Animals need oxygen for respiration. Plants need oxygen for respiration and carbon dioxide for photosynthesis.
2. They can reproduce. That's why you have the life cycle. They reproduce so as to ensure their own kind exist.
3. They can grow and die. Living things die due to a)lack of food and water b) eaten by others c)old age and d) diseases.
4. They can move by themselves. Animals move to look for shelter, food and get away from danger. Plants move their plants parts to get water and enough sunlight.
5. They respond to changes. Animals and plants move because they respond to changes. Remember, I tried to tickle Wesley and he tried to move away? The mimosa leaves close up when touched.
You must know how to spell all the words.
Some things may not display the above characteristics but are living things. Example, seeds (They do not move, but they will germinate and grow into plants.) and pupa (They will continue to develop into the adult stage.)
So, answer to the questions, DO NOT just 'throw out' all the characteristics. Read the questions to identify what are the characteristics, given and what are the missing ones.
Characteristics of Living Things:
1. They need air, water and food. Animals either hunt or look for food. Plants make their own food. Animals need oxygen for respiration. Plants need oxygen for respiration and carbon dioxide for photosynthesis.
2. They can reproduce. That's why you have the life cycle. They reproduce so as to ensure their own kind exist.
3. They can grow and die. Living things die due to a)lack of food and water b) eaten by others c)old age and d) diseases.
4. They can move by themselves. Animals move to look for shelter, food and get away from danger. Plants move their plants parts to get water and enough sunlight.
5. They respond to changes. Animals and plants move because they respond to changes. Remember, I tried to tickle Wesley and he tried to move away? The mimosa leaves close up when touched.
You must know how to spell all the words.
Some things may not display the above characteristics but are living things. Example, seeds (They do not move, but they will germinate and grow into plants.) and pupa (They will continue to develop into the adult stage.)
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