Savais-tu que.. La Grande Muraille

Christopher explains that the men and women of ancient Italy wore the same clothes.

Lexie explains that the inflow and outflow of liquids in the human body are balanced by the kidneys.

Lexie explains that water helps the kidneys eliminate waste in the blood.

Lexie explains that prolonged listening to loud music could be detrimental to hearing.

Lexie explains what are allergies and various reactions of the human body.

Lexie explains that the liver is the only part of the human body that can regenerate itself.

Lexie explains and names the three layers of skin found on the human body, the epidermis, the dermis and the hypodermis.

Lexie explains that research conducted by a scientist has shown that vomit has the same odor as parmesan cheese.

Lexie explains that physical activity helps to be more alert and focused, which helps learning.

Lexie explains that neurons in the brain change the structure of the brain when new learning is done.

Lexie explains that a liquid in the ears helps to keep the balance.

Eyebrows are more useful than you think. Lexie explains why they are essential for the protection of our eyes.

Lexie teaches us why our bodies need to produce acid. We eat a lot of food a day and this substance allows us to dissolve our food.

Lexie gives us some interesting facts about the effects of eating chocolate. We all love to eat it, but if it helps us improve our memory, that's even more positive!

Lexie shows us how to hear our own voice. Did you know that you can hear it? Just follow Lexie's advice.