Life processes happen at the cellular level; atomic theory; light as particle and wave; plate tectonics
Below is how the official curriculum organizes it. Each strand will get full lessons like the ones in Grade 1 Mathematics.
Characteristics of life; cell theory and cell types; photosynthesis and cellular respiration; micro-organisms, immunity, vaccines and antibiotics
Kinetic molecular theory; atomic theory and models; subatomic particles
Electromagnetic radiation; properties and behaviour of light
Plate tectonics; Earth's layers; local geological events and formations, including First Peoples knowledge