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Summary Grade 8 Natural Sciences (NS) Summaries - Term 1 (Spot On)

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Grade 8 Natural Sciences (NS) Summaries - Term 1 (Spot On): These summaries are compiled using the Spot On textbook's Term 1 content. The summaries are in English, with additional notes provided by the compiler. Term 1:  Life and living Module 1:  Photosynthesis and respiration Module 2:  Interactions and interdependence within the environment Module 3:  Micro-organisms Packages usually include the following, though content may vary by product: Overview for the term, including main points, keywords, and short summaries/revision. Mind map per chapter/topic/term, depending on volume. Extensive bulleted summaries in colour with pictures and/or photos.

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, Respiration
Photosynthesis
• Energy is released from food through chemical
reactions in the body. Capturing the sun’s energy
• Respiration breaks down glucose molecules to
release energy. • All animals depend on other animals or
• Mitochondria are responsible for respiration. plants for food.
• Carbon dioxide and water are by-products. • Plants capture the sun’s energy through
• Glucose + oxygen -----> energy + carbon dioxide + photosynthesis.
water.
• The lime water test indicates the presence of M1:

Sample
carbon dioxide by turning the lime water milky. Photosynthesis
and respiration
What is photosynthesis?



Summaries after sample
• Chlorophyll traps radiant energy and converts it into
glucose.
• Glucose is stored as starch.
• Water and carbon dioxide (CO2) is also needed.
• Oxygen is released as a by-product.
• Photosynthesis – chemical process where a green plant
uses radiant energy from the sun together with carbon
dioxide and water to make glucose.
Chlorophyll
• Carbon dioxide + water -------------------> glucose + oxygen.
Sunlight




T1-M1 Spot On Copyright © www.summariessa.co.za (DO NOT COPY)
GR8 NS Mind Map

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