NGSS
HS-ESS2-3
3 lessons teach this standard. Every lesson is interactive, and every one prints as a worksheet with a separate answer key.
Earth and Space Science · Chapter 2 · Lesson 1
Two ways to divide it, and they do not line up.
Earth and Space Science · Chapter 2 · Lesson 2
Seismic Evidence for Structure
The core was found by noticing what did not arrive.
Earth and Space Science · Chapter 2 · Lesson 3
Three motions, and density decides the rest.