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

1. gravity
1.1. force
2. Solar system
2.1. moon
2.2. sun
3. Earth
3.1. crust
3.1.1. land
3.1.2. water
3.2. mantle
3.3. outer core
3.4. inner core
3.4.1. lava