1. Natural Sciences Grade 7
Term 1: Life and Living
Biodiversity
(PPT 2)

2. Classification of Living Organisms
Topic 2 Biodiversity
Classification of Living Organisms
Gr 7 Natural Sciences – Term 1, Topic 2

3. Gr 7 Natural Sciences - Term 1, Topic 2
The 5 Kingdoms
All living things are sorted into 5 main groups called Kingdoms.
We sort living things into any of the 5 Kingdoms based on –
size;
whether it eats food or makes its own food;
ability to move or not.
Gr 7 Natural Sciences - Term 1, Topic 2 3

4. Gr 7 Natural Sciences - Term 1, Topic 2
The 5 Kingdoms are…
Most Monera (Bacteria)
People Protista
Find Fungi
Plants Plants
Attractive Animals
Gr 7 Natural Sciences - Term 1, Topic 2 4

5. Gr 7 Natural Sciences - Term 1, Topic 2
Monera (bacteria)
very small
unicellular without a cell nucleus
some are useful and help in production of
food, e.g. cheese and yoghurt)
some decompose dead organic material
others are harmful and can cause diseases
Gr 7 Natural Sciences - Term 1, Topic 2 5

6. Gr 7 Natural Sciences - Term 1, Topic 2
Protista
very small
unicellular with a cell nucleus
includes parasites, for example, the parasite that causes malaria
Gr 7 Natural Sciences - Term 1, Topic 2 6

7. Gr 7 Natural Sciences - Term 1, Topic 2
Fungi
Examples –
mushrooms,
mould that grows on old bread
the parasite that causes athlete’s
foot in humans.
Gr 7 Natural Sciences - Term 1, Topic 2 7

8. Gr 7 Natural Sciences - Term 1, Topic 2
Plants
trap sun’s energy: change
light energy into chemical
(food) energy.
provide food for animals
include algae e.g.
brown algae.
Gr 7 Natural Sciences - Term 1, Topic 2 8

9. Gr 7 Natural Sciences - Term 1, Topic 2
Animals
feed on plants and other
animals
are able to move and
search for food
Gr 7 Natural Sciences - Term 1, Topic 2 9

10. Differences between plants and animals
Plants and animals differ from each other in the following processes:
movement
nutrition
reproduction
Gr 7 Natural Sciences - Term 1, Topic 2 10

11. Differences between plants and animals.
NUTRITION
Plants
make own food through photosynthesis
Animals
feed on plants and other animals
Gr 7 Natural Sciences - Term 1, Topic 2 11

12. Differences between plants and animals.
MOVEMENT
Plants
limited
some plant organs grow towards the sun
they make seeds that are small enough to move
Animals
move freely – can look for food, escape enemies
Gr 7 Natural Sciences - Term 1, Topic 2 12

13. Differences between plants and animals.
REPRODUCTION
Plants
make seeds or
make spores that can blow in the wind
Animals
Male animals make sperms that swim to find female animals’ eggs.
Gr 7 Natural Sciences - Term 1, Topic 2 13

14. Differences between plants and animals.
NUTRITION
MOVEMENT
REPRODUCTION
Plants
make own food through photosynthesis
limited
some plant organs grow towards the sun
they make seeds that are small enough to move
make seeds or
make spores that can blow in the wind
Animals
feed on plants and other animals
move freely – can look for food, escape enemies
Male animals make sperms that swim to find female animals’ eggs.
Gr 7 Natural Sciences - Term 1, Topic 2 14