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

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

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. http://space-facts.com/earth/ Gr 7 Natural Sciences - Term 1, Topic 2 3

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

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 http://space-facts.com/earth/ Gr 7 Natural Sciences - Term 1, Topic 2 5

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 http://space-facts.com/earth/ Gr 7 Natural Sciences - Term 1, Topic 2 6

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. http://space-facts.com/earth/ Gr 7 Natural Sciences - Term 1, Topic 2 7

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. http://space-facts.com/earth/ Gr 7 Natural Sciences - Term 1, Topic 2 8

Gr 7 Natural Sciences - Term 1, Topic 2 Animals feed on plants and other animals are able to move and search for food http://space-facts.com/earth/ Gr 7 Natural Sciences - Term 1, Topic 2 9

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

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

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 http://space-facts.com/earth/ Gr 7 Natural Sciences - Term 1, Topic 2 12

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. http://space-facts.com/earth/ Gr 7 Natural Sciences - Term 1, Topic 2 13

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. http://space-facts.com/earth/ Gr 7 Natural Sciences - Term 1, Topic 2 14