1. Organisms, Behaviour and Health Year 6: life processes
All – be able to describe “cool” science jobs.
All – to describe some of the key reasons why we need to study science.
Most – be able to use the correct scientific terms for scientific professions.
MRS GREN
Organisms, Behaviour and Health
Year 6: life processes

2. 7A Signs of life - Life on Mars?
TEACHER’S NOTES
To be used as a starting point for classroom discussion

3. A simple way of sorting everything on our planet
7A Signs of life - Life on Mars?
Serious efforts to discover life on other planets have been going on for many years.
If extra-terrestrial beings really were discovered how would scientists decide if they were alive?
A simple way of sorting everything on our planet
is to divide it into 2 groups
– living things and non-living things.
But can you tell the difference?

4. 7A Signs of life - Staying alive

5. There are seven essential life processes.
7A Signs of life – The meaning of life
There are seven essential life processes.
To remember these processes meet
our little blue woman MRS. GREN…
What do all the letters in her name stand for?

6. Living things need energy to carry out the
7A Signs of life - The meaning of life
M = MOVEMENT
Living things are able to move about. Animals move from place to place. Plants move by responding to light.
R = RESPIRATION
Living things need energy to carry out the
functions that keep them alive. Respiration is the process by which food is turned into energy.
S = SENSITIVITY
Living things notice and react to changes in
their surroundings. They can respond to light, heat, sound, taste, sight or touch.

7. Living things grow, increasing in size and complexity.
7A Signs of life - The meaning of life
G = GROWTH
Living things grow, increasing in size and complexity.
R = REPRODUCTION
Living things produce offspring. Reproduction continues the survival of each species.
E = EXCRETION
Living things have to get rid of unwanted waste products.
N = NUTRITION
Living things need to take in food so that respiration can occur. Nutrients in food help to build, maintain and repair the organism.

8. But how do living things do all of these?
7A Signs of life - The meaning of life
All living things carry out the seven essential life processes. M R S G E N
= Movement
= Respiration
= Sensitivity
= Growth
= Reproduction
= Excretion
= Nutrition
But how do living things do all of these?