Age 10-13 years, Core Knowledge Foundation, Fluent English, Grade 4 to Grade 6, Nature, Non-Fiction, Older Children, Open Educational Resources.Geology grade 4 – The Changing Earth is designed as a non-fiction reader for ELA grade 4, but can also be used as a science text for study in earth sciences."We're thrilled to hear that you enjoyed our product. Your feedback means a lot to us and can help others make confident choices. If you're comfortable with it, please come back to share your experie