Grade 10 Life Science Term 1 Notes
Dive into the fundamentals of Life Science with these comprehensive and syllabus-aligned Grade 10 Term 1 notes! Covering:
Biosphere and Ecology: Relationships between organisms and their environments, biomes, and ecosystems.
Energy Flow & Nutrient Cycles...
Biosphere
Ecology- Study of the relationship amongst living organisms and their nonliving environments
● Biosphere refers to an area where living organisms are found
● An ecosystem consists of living organisms (Bacteria, animals etc) & the nonliving factors
around them (soil, air & water)
Biomes
● Climate- weather, temp & rainfall patterns
● Biome- Region w a certain climate, soil type, animal type & types of vegetation
○ Biomes- terrestrial or aquatic
Grassland 🖼️
● Found in Mpumalanga, Gauteng, KZNl, EC & FS
● Climate- Summer is hot & wet . Winter is cold & dry
● Vegetation- Trees are scarce but grass is dominant
Animal Life- Lots of bird eg Blue Crane
● Soil- Deep & dark w fertile upper layers
Savannah
Covers 46% of SA’s land areas
● Found in Mpumalanga, Limpopo, KZN & EC
● Climate- Very hot summer/ Cool & dry winter.Less summer rainfall.Hotter than grassland
● Vegetation- Mix of grass & trees eg Baobab & Maroela
Animal Life- Big 5. Also
● Soil- Thin and lacks humus (organic matter)
Forest🐍🌳
● Found in Knysna, KZN, WC, Limp, Mpumalanga
● Climate- Temps vary from 30 to -50 C. Rainfall all year round
● Vegetation- Soil is rich in nutrient & can support tall trees eg yellow wood
Animal Life- Lots of Colourful birds eg Knysna Turaco
● Soil- Fertile & enriched by decaying plants
Nama Karoo
● Found in Namaland (Namibia) & Karoo (SA)
● Climate- Semi desert. Low rainfall (>400mm/y). Hot summer, very cold winter
● Vegetation- Shrubs & grass. Trees grow alongside river
● Animal Life- Animals can survive extreme temps & little water eg Jackal, Fox & dussy
● Soil- Thin & rich in lime. Not very fertile
Succulent Karoo 🏜️
● Found in WC & NC
● Climate- Hot summer (Up to 40C)/ cold winter. Winter rainfall area but very little
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