Volcanoes are powerful mountains that can erupt with lava. The hot lava comes from deep inside the Earth. When it cools, it forms new rocks and land. Some volcanoes are active and others are sleeping.

Recycling helps keep the Earth clean and healthy. We can recycle paper, plastic, glass, and metal. Recycling saves energy and resources. It also keeps trash out of the ocean and landfills.

Frogs live near ponds, lakes, and rivers. They start as eggs and then turn into tadpoles. Tadpoles have tails and live in the water. When they grow up, they lose their tails and grow legs. Adult frogs can jump high and eat insects.

Apples grow on trees in many parts of the world. They come in colors like red, green, and yellow. People eat apples fresh or use them to make juice, pies, and sauces. Apple trees grow best in places with cool weather.

The Arctic is one of the coldest places on Earth. It is covered with ice and snow most of the year. Polar bears, seals, and Arctic foxes live there. In the summer, the sun shines almost all day.

Rainbows form when sunlight passes through raindrops. The light bends and shows seven colors. These colors are red, orange, yellow, green, blue, indigo, and violet. You can often see a rainbow after it rains.

A library is a quiet place full of books. People can borrow books to read at home. Libraries also have computers, games, and story times for kids. Librarians help people find the information they need.

Penguins are birds that live in cold places. They cannot fly, but they are great swimmers. Their black and white feathers keep them warm. Penguins eat fish and other small sea animals. They live together in large groups called colonies.

The moon orbits around the Earth. It changes shape each night, and we call these shapes moon phases. The full moon is the brightest and easiest to see. Long ago, people used the moon to tell time.

Trees are very important to life on Earth. They give us oxygen to breathe and shade to keep us cool. Birds and animals live in their branches. Trees also help stop soil from washing away. When we plant trees, we help the planet.

Deserts are dry places with little rain. The days are hot, but the nights can be very cold. Cactus plants grow in deserts and store water inside. Many desert animals hide during the day to stay cool.

Bees are small insects that work very hard. They fly from flower to flower collecting nectar. Bees make honey and store it in their hives. While they collect nectar, they also help plants grow by spreading pollen.

Firefighters have a very important job. They put out fires and rescue people. Firefighters wear special suits to protect themselves from heat and smoke. They also teach people how to stay safe.