Earth Systems
4th Grade Science · 13 lessons
Start lesson 1
Lessons
- 1The Water CycleThe water cycle describes how water moves through Earth's systems. Water evaporates from oceans, condenses into clouds, falls as precipitation, and flows back to the ocean.Experiment
- 2Physical and Chemical WeatheringWeathering breaks rocks into smaller pieces through physical processes (like freezing water expanding in cracks) and chemical processes (like acid rain dissolving limestone).Experiment
- 3The Rock CycleThe rock cycle shows how rocks change from one type to another. Igneous rocks form from cooled magma, sedimentary rocks form from compressed sediment, and metamorphic rocks form under heat and pressure.Experiment
- 4Reading Rock LayersSedimentary rocks form in layers, with the oldest layers at the bottom. Geologists use these layers to determine the relative age of rocks and the fossils they contain.Experiment
- 5How Erosion Moves EarthErosion moves weathered rock and soil from one place to another by water, wind, ice, or gravity. Rivers carve valleys, wind shapes sand dunes, and glaciers grind mountains.Experiment
- 6How Fossils FormFossils are preserved remains or traces of ancient organisms. They form when organisms are buried in sediment that hardens into rock over millions of years.Experiment
🖨️
View in ShopGet all 13 Earth Systems lessons as PDF
Printable worksheets & answer keys — $4.99