Cow longitudinal section of bone, front leg bone, to view internal structure, periosteum, solid bone layer, spongy bone, medullary canal, yellow bone marrow, red bone marrow, epiphysial line, head of the long bone with articulating surface of the hyaline cartilage* * Ward's preserved cow material is a byproduct of the food industry. Cows are not raised specifically for dissection. This animal material is "recycled" for educational use.
Sun, Earth, Moon Orbital Model, Multiple moving axis to demonstrate daylight, night, seasons and phases of moon, Requires two AA batteries, Light bulb inside sun to demonstrate sun light on moon & earth, Base has the months of the year along with the season
Solar Eclipse Viewer, Safe for Direct Solar Viewing, Material: Black Polymer, Meets the Standard for ISO 12312-2:2015, CE certified, Filter out 100% of harmful ultra-violet and infrared and 99.999% of intense visible light, Hand Held Card: 3x5in with 1x4in Aperture