Table of Contents There are over 20,000 species of fish that we know of today. Some of these fish live in salty ocean water. Others live in freshwater, like lakes and ponds. Salmon actually spend some time in freshwater and some time in saltwater, making their life cycle unique. Normally, […]

Table of Contents Fleas are tiny creatures, measuring only 1 to 3 millimeters long. They are smaller than the staple that holds paper together, which is about 6 millimeters long. But even small creatures like fleas can be mighty. Some types of fleas can jump incredible lengths, despite their extremely

Table of Contents Only ten percent of the ocean has been explored. It is full of mystery and surprises, with beauty at every depth. One mysterious sight in the ocean is bioluminescent algae. is when an organism glows or shines a bright light. Fireflies are a great example of a

Table of Contents Elephants are giants! They are the largest land mammals on the planet, weighing in at 4 to 6 tons, and measuring between 18–24 feet long. For reference, the Liberty Bell only weighs one ton. You might think that because elephants are so large, they could have trouble

Table of Contents What does a typical plant need to grow? Water, nutrients, and sunlight. You might think that mushrooms grow in a similar way. However, mushrooms are fungi, not plants. Unlike plants, mushrooms do not use to make their own food. In fact, they grow in a different way!

Most dinosaurs became extinct 65 million years ago. It is likely that an asteroid hit Earth, destroying many types of creatures. Before this, dinosaurs lived for 165 million years on Earth. We know this because of scientists called paleontologists who study the past through fossil records. Fossil records gained popularity

Our teeth have important jobs. They help crush and break down foods, which is the first step in digestion. Teeth also play an important role in forming words when we speak. Having good dental hygiene by brushing, flossing, and using mouthwash is key to keeping our teeth healthy.    Dental

Table of Contents Sitting between the countries of Jordan and Israel is a body of water called the Dead Sea. It is the lowest point on land, its surface being 1,400 ft (430 m) below sea level, while its deepest point is another 1,000 feet below. Hearing this name may

Table of Contents Why do plant cells have mitochondria? All living things in the world are made up of units called cells. Our cells can work together to make big things happen. For example, in humans, cells can team up and become organs, like your heart or your brain. The

Table of Contents What is a monkey’s favorite dance move? The banana split!   What makes you laugh? It could be a friend making a funny face at you or a joke you hear on your favorite show. Laughing can happen when we find something funny, but it can also