Biology 7th grade
35 feasible experiments
• The shells of mollusca
• Insect growth
• The anthill
• Anatomy of fish
• Habitats and living conditions
• Animal cells
• Glandular tissues
• Muscle tissues
• Starch digestion
• Fats digestion
• Protein digestion
• Osmotic pressure
• Skin appendages: fish and reptiles
• Thermal insulation: birds and mammals
• pH and organic reactions
Head: Binocular, 30° inclined; 360° rotating.
Dioptric adjustment: Left eyepiece
Eyepieces: WF 10х/18
Nosepiece: Quadruple ball bearings revolving nosepiece, reversed
Objectives: Achromatic 4х, 10х, 40х
Specimen stage: 125x125 mm, 62x24 mm X-Y movement range
Focusing: Coaxial coarse and fine
Condenser: Abbe N.A. 1.25, pre-centered, focusable, with iris diaphragm
Illumination: 1 W LED built-in in the condenser, with brightness control
Head: Monocular, 45° inclined; 360° rotating.
Eyepiece: WF10x/18 mm.
Nosepiece: Triple ball bearings revolving nosepiece, reversed.
Objectives: – Achromatic 4x/0.10 – Achromatic 10x/0.25 – Achromatic 40x/0.65. All with anti-fungus treatment.
Specimen stage: X-Y moving and 360° rotating, 90 mm diameter, with sample clips.
Focusing: Separate coarse and fine focusing mechanism with limit stop to prevent the contact between objective and specimen. Condenser: Diffusing filter with rotating diaphragm wheel.
Illumination: 0.3 W LED, with brightness control, rechargeable batteries.
Color temperature: 6,300 K. 100-240Vac/5Vdc external power supply.
Skeletal muscle - small intestine - diaphanus cartilage - elastic cartilage- compact bone - mammal tongue - mammalstomach - lung - yoghurtbacteria - starch - iris ovary- raphides -dicotyledon thallus - stonecells - pollen - ascomycota - butterfly wing -fly leg - sponge spicule- hydroides - bird blood - mammal hair -ctenoid scale - bee wing -spider leg.