Grade 10 — Term 2
Aligned with NIE syllabus
This term in the Idasara Academy app has 3 lessons (NIE Units 3, 6, 9). For each lesson, this page gives you the points you must know and one exam-style question with its answer. None of it needs an account.
Is this what my class is doing now?
Maybe not. The Idasara app groups lessons into its own terms, and your school may teach them in a different order. Where we know a lesson's NIE unit, it is shown on the lesson. Find the unit your class is on, and start there.
Lessons in This Term
Photosynthesis
NIE Unit 3
What you must know
- Limiting factors: light intensity, CO₂ concentration, temperature, water
- Starch test: iodine turns blue-black on a leaf that has photosynthesised
- Respiration (reverse): C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + ATP
- Photosynthesis = base of almost all food chains
Digestive, Circulatory, Respiratory and Nervous Systems
NIE Unit 9
What you must know
- Digestion enzymes: amylase (starch→sugar), protease (protein→amino acids), lipase (fat→glycerol+fatty acids)
- Nervous system: stimulus → receptor → sensory nerve → CNS → motor nerve → effector → response
- Hormones (endocrine system): insulin (blood glucose), adrenaline (fight/flight), oestrogen/testosterone
- Blood components: red cells (O₂), white cells (immunity), platelets (clotting), plasma (transport)
Motion, Force and Newton's Laws
NIE Unit 6
What you must know
- Acceleration = change in velocity ÷ time (m/s²)
- Weight (W) = mass (m) × gravitational field strength (g); W = mg
- g ≈ 10 N/kg on Earth's surface
- Friction: force opposing motion; depends on surface roughness and normal force
- Distance-time graph: gradient = speed; velocity-time graph: gradient = acceleration; area = distance
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