Libro Santillana 1er Año Ciencias Naturales Pdf High Quality Direct

As they explored the solar system, they came across a fascinating planet called Mars. Leo exclaimed, "Wow, Mars is so cool! I want to visit it one day." Luna replied, "Who knows, maybe one day we'll have a chance to explore Mars and discover its secrets."

One day, Luna and Leo decided to explore the nearby river. As they skipped rocks on the water's surface, they learned about the water cycle. They discovered that water evaporates from the Earth's surface, condenses into clouds, and then falls back to the Earth as precipitation. libro santillana 1er año ciencias naturales pdf

Mrs. Verde took Luna and Leo on a virtual journey to the Earth's interior. They learned about the Earth's crust, mantle, and core. Luna was surprised to know that the Earth's core was made up of hot, melted iron and nickel. Leo asked, "How do we know what's inside the Earth if we can't see it?" Mrs. Verde explained that scientists use special tools and techniques to study the Earth's interior. As they explored the solar system, they came