Why Is the Skin of an Orange Pitted?
Why Is the Skin of an Orange Pitted? The skin (outer covering) of an orange is dotted with oil glands. Thousands of tiny oil bags lie just b
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Layer
Are All the Parts of a Tree Alive?
Are All the Parts of a Tree Alive? Actually, most of the wood in the trunk and branches (the heartwood) of a tree is dead. The outer layer o
How Do Trees Grow Tall?
How Do Trees Grow Tall? Trees don’t grow taller by growing from the bottom. Carve your initials in a tree and they will still be the same
How Does a Snake Shed Its Skin?
How Does a Snake Shed Its Skin? Shortly after it is born, the snake will shed its skin. It will continue to shed its skin from time to time
How Do Oysters Make Pearls?
Most jewelry is made from precious stones, mined from the earth. But pearls are formed inside the shells of creatures known as pearl oysters