Pick a week to start (or pick up where you left off). Each week has Mon-Fri lessons and a celebration recap.
// We ride a spinning Earth
// The lit half seen from changing angles
// When the shadows line up
// A tilted axis that always points the same way
// One pull keeps the whole solar system together
// How a spinning cloud became a solar system
// Walking the solar system one step at a time
// Reading the planets as a data table
// Energy flows, matter cycles, rocks turn into other rocks
// Oldest at the bottom, youngest on top
// Four and a half billion years on one roll of paper
// Criteria, constraints, build, measure, improve