Below is how the official curriculum organizes it. Each strand will get full lessons like the ones in Grade 1 Mathematics.
Needs and Characteristics of Living Things: compare living things; how plants, animals and humans meet basic needs
Using Objects and Materials: natural and human-made materials; changing and combining materials to build objects
Using Our Senses: the five senses in humans and animals and how they help us understand surroundings
Daily and Seasonal Changes: observe and record changes; how living things adapt to them