Talking Solar System Digestive System Model CO2 given off by the

CO2 given off by the respiring organisms is absorbed by potassium hydroxide in the experimental chamber resulting in a change in the level of liquid in the manometer tube

The model is made according to the anatomical principle and consists of a transparent plastic external body shape and internal structures such as PVC plastic ribs

The dish bottom is covered with a paraffin wax layer

Segments are double-sided magnets with fractions on one side and percentages on the other

Talking Solar System Digestive System Model CO2 given off by theLearn using this colorful educational model of our solar system. Great value Automatic Rotation Voice interactive Sturdy child friendly construction This model can be used as a visual aid in schools for Geology lessons. Premium Quality: This item is made of high quality, heavy duty and durable materials. Designed for use in geology classrooms, household and educational settings. If you need custom order with different sizes design, please contact us.