Why Do We Yawn?
Why Do We Yawn? Though we don’t know all the reasons for yawning, it is usually a way of helping our breathing. That extra deep breath gets oxygen into our...
Read More
How Do Fish Live in a Frozen Pond?
How Do Fish Live in a Frozen Pond? Anyone who has fished through a hole in the ice knows that many fish are active in the winter. Usually, what we call a frozen pond is...
Read More
Why Does Iron Rust?
The metal iron combines chemically with oxygen when there is moisture in the air, and the result is the reddish substance we call rust. Iron and steel rust when they...
Read More
Do Fish Drink Water?
Yes, fish drink water. In fact, fish that live in the ocean drink considerably more water than freshwater fish. Ocean fish must gulp water constantly because the salty...
Read More
How Does a Fire Extinguisher Work?
How Does a Fire Extinguisher Work? Most fire extinguishers smother a fire by shutting off the supply of air with certain chemicals. The carbon dioxide extinguisher...
Read More