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