Where Do Flowers Get Their Smell From?
Where Do Flowers Get Their Smell From? Most flowers get their smell from oil produced in their petals. As the oil evaporates into the air, we are able to smell the...
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How Do We Hear Sounds?
How Do We Hear Sounds? When sounds are made, they set up movements in the air. These movements are called sound waves. The cup-like shape of the outer ear collects the...
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What Makes Your Foot Go to Sleep?
What Makes Your Foot Go to Sleep? When you sit with your leg doubled up, you are squeezing the blood vessels in your leg so that the blood can barely pass through them....
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How Can You Tell How Old a Tree Is?
How Can You Tell How Old a Tree Is? There are two ways to find out how old a tree is. The first is to wait until the tree is cut down and count the rings. The study of...
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Do Insects Have Blood?
Do Insects Have Blood? Yes. Not only does an insect have blood, it also has a heart that pumps the blood throughout its body. The heart is a tube-shaped vessel...
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