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Natural Sciences�Grade 7

Term 1: Life and Living

Biodiversity

(PPT 2)

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Topic 2 �Biodiversity

Classification of Living Organisms

Gr 7 Natural Sciences – Term 1, Topic 2

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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

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The 5 Kingdoms are…

Most Monera (Bacteria)

People Protista

Find Fungi

Plants Plants

Attractive Animals

Gr 7 Natural Sciences - Term 1, Topic 2

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Monera (bacteria)

Gr 7 Natural Sciences - Term 1, Topic 2

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

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Protista

Gr 7 Natural Sciences - Term 1, Topic 2

very small
unicellular with a cell nucleus
includes parasites, for example, the parasite that causes malaria

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Fungi

Gr 7 Natural Sciences - Term 1, Topic 2

Examples –

mushrooms,
mould that grows on old bread
the parasite that causes athlete’s

foot in humans.

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Plants

Gr 7 Natural Sciences - Term 1, Topic 2

trap sun’s energy: change

light energy into chemical

(food) energy.

provide food for animals
include algae e.g.

brown algae.

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Animals

Gr 7 Natural Sciences - Term 1, Topic 2

feed on plants and other

animals

are able to move and

search for food

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Differences between plants and animals

Gr 7 Natural Sciences - Term 1, Topic 2

Plants and animals differ from each other in the following processes:

movement
nutrition
reproduction

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Differences between plants and animals.

Gr 7 Natural Sciences - Term 1, Topic 2

NUTRITION
Plants	make own food through photosynthesis
Animals	feed on plants and other animals

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Differences between plants and animals.

Gr 7 Natural Sciences - Term 1, Topic 2

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

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Differences between plants and animals.

Gr 7 Natural Sciences - Term 1, Topic 2

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.

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Differences between plants and animals.

Gr 7 Natural Sciences - Term 1, Topic 2

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.