You can learn about the path that food pass though the digestive organs until it exits as waste! (Note: Study book is provided inside the package) Children can learn quickly how nutrients from food are being absorbed by digestive organs by watching the ste
You can learn about the path that food pass though the digestive organs until it exits as waste! (Note: Study book is provided inside the package)
Children can learn quickly how nutrients from food are being absorbed by digestive organs by watching the steel ball flows through out and also enhance their knowledge in digestive system.
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