Earth's Changing Surface
Grade 4 Science · Northwest Territories, Canada
Explore weathering, erosion, and how Earth's surface changes.
Lessons
Weathering
Weathering is the process that breaks rocks into smaller pieces over time. It can be caused by water, wind, ice, or living things.
Erosion and Deposition
Erosion moves rock and soil from one place to another. Deposition is when that material is dropped in a new location.
Earthquakes
Earthquakes happen when large pieces of Earth's crust suddenly move. The shaking can change the surface in seconds.
Volcanoes
A volcano is an opening in Earth's surface where hot melted rock, ash, and gases escape from below.
Fossils
Fossils are the preserved remains or traces of plants and animals that lived long ago. They help scientists learn about life in the past.
People Also Ask
What topics are in Earth's Changing Surface for Grade 4 Science?+
The Earth's Changing Surface chapter covers multiple lessons aligned to the Northwest Territories curriculum. Browse all lessons below to see the full topic list.
Is Earth's Changing Surface part of the Northwest Territories curriculum?+
Yes, Earth's Changing Surface is part of the official Grade 4 Science curriculum in Northwest Territories, Canada.