- Grouping and classification
- Living and nonliving things
- Animals
- Pets
- Farm animals
- Zoo and circus animals
- Woodland animals
- Common birds
- Plant and animal habitats
- Seeds, bulbs, plants, flowers
- Weather and seasons
- Day and night
- Solids, liquids, gases
- Air and water
- Magnets
- Fire and temperature
- Sun, moon, stars, planets
- Simple machines
- Beginning experimentation
- Scientific method and scientific inquiry

