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You can find digital versions and answers for these practical works on educational platforms like Shkola.in.ua , which host various 8th-grade biology manuals updated for the current curriculum.
: Microscopic viewing of human blood cells (erythrocytes and leukocytes) and measuring pulse rates under different physical conditions. You can find digital versions and answers for
: Filling in tables and drawing diagrams based on observed physiological changes (e.g., heart rate after exercise). Online Availability chemical composition (organic vs. inorganic materials)
: Studies on bone structure, chemical composition (organic vs. inorganic materials), and muscle fatigue. typical exercises include:
: Calculating the weight-to-height index to assess physical development.
: Experiments on the effect of enzymes (like amylase) on starch and respiratory movements.
For students using resources like the 8next Biology portal , typical exercises include: