K1-ESS1-1.Use observations of the sun, moon, and stars to describe patterns that can be predicted.

1. Earth

1.1. crust

1.1.1. land

1.1.2. water

1.2. mantle

1.3. outer core

1.4. inner core

1.4.1. lava

2. weather

3. gravity

3.1. force

4. Solar system

4.1. moon

4.2. sun