Human Circulatory System Model, Half Natural Size, on 32 x 12" Base Human Anatomy_Human Anatomy Models designed for image-formation and focal-length

designed for image-formation and focal-length investigation

the candy-bar form letting students break each piece into smaller magnets that retain their own north and south poles

5 by 4-inch ventilation apparatus modeling historic mine-gallery airflow and domestic chimney convection through a candle-driven hot-air-rise demonstration

3g nickel-plated steel balls on a red wood base

Spring-loaded for hands-free grip

Human Circulatory System Model, Half Natural Size, on 32 x 12" Base Human Anatomy_Human Anatomy Models designed for image-formation and focal-lengthHalf life size circulatory system board traces arterial and venous pathways from heart to peripheral capillaries with numbered, hand painted detail for blood flow teaching.