What are rocks and how do they form? What is the rock cycle? Why are rocks different colors? What are the different layers inside our planet? “From towering mountains to the gravel and pebbles along a river, Earth’s solid exterior is made of a huge variety of rocks. Some are...
What are rocks and how do they form? What is the rock cycle? Why are rocks different colors? What are the different layers inside our planet? “From towering mountains to the gravel and pebbles along a river, Earth’s solid exterior is made of a huge variety of rocks. Some are...