| Lesson | Description |
| 1-1 | Practice Telling Temperatures |
| 1-2 | Living Things and Where They Live |
| 1-3 | Our Body's Bones |
| 1-4 | Our Body's Muscles |
| 1-5 | The Heart and How it Works |
| 1-6 | How Food is Digested |
| 1-7 | How the Brain Works |
| 1-8 | Solids, Liquids, and Gases |
| 1-9 | How Electricity Works |
| 1-10 | The Planets in our Solar System |
| 2-1 | Levers, Wheels, Pulleys, Inclined Planes, Wedges, and Screws |
| 2-2 | Evaporation, Condensation, and Precipitation |
| 2-3 | Magnets and Magnetism |
| 2-4 | Using a Compass |
| 2-5 | How Insects are Harmful and Helpful |
| 2-6 | The Parts of Insects |
| 2-7 | Our Cells |
| 2-8 | Cells, Tissues, Organs, and Systems |
| 2-8-1 | The Digestive System |
| 2-9 | The Life Cycle of Plants |
| 2-10 | The Life Cycle of a Frog |
| 3-1 | Mercury, Venus, Earth, Mars and the Asteroid Belt |
| 3-2 | Jupiter, Saturn, Uranus, Neptune, and Pluto |
| 3-3 | Plants, Animals, Bacteria, Fungi and their Role in Nature |
| 3-4 | The Environment |
| 3-5 | The Nervous System and How it Works |
| 3-5-1 | The Ear and How it Works |
| 3-5-2 | The Eye and How it Works |
| 3-6 | Protons, Neutrons, and Electrons |
| 3-7 | How a Simple Circuit Conducts Electricity |
| 3-8 | Mass, Volume, and Density |
| 3-9 | How is a Star Formed? |
| 3-10 | The Death of a Star |
| 3-11 | How do Black Holes Form? |
| 3-12 | Hot-Air Balloons and Blimps |
| 3-13 | Helicopters |
| 3-14 | Sailplanes and Hang Gliders |
| 3-15 | Airplanes - Kinds and Uses of Each |
| 3-16 | The Six Groups of the Food Pyramid |
| 4-1 | The Circulatory System and How it Works |
| 4-1-1 | More About the Circulatory System |
| 4-1-2 | How the Heart Works |
| 4-2 | The Respiratory System and How it Works |
| 4-3 | The Crust, Mantle, and Inner & Outer Core |
| 4-4 | The Plates that make up the Earth's Crust |
| 4-5 | Faults, Tsunamis, and Volcanoes |
| 4-6 | The Precambrian and Paleozoic Eras
|
| 4-7 | The Mesozoic and Cenozoic Eras |
| 4-8 | Different Kinds of Fossils |
| 4-9 | Fossil Fuels and Their Importance to Man |
| 4-10 | Hydroelectricity, Nuclear, Wind, Solar and Geothermal Energy |
| 4-11 | Understanding the Concept of Force |
| 4-12 | Understanding the Concept of Pressure |
| 4-13 | Understanding the Concept of Work |
| 4-14 | Understanding the Concept of Power |
| 4-15 | Understanding the Concept of Speed |
| 5-1 | The Differences Between Direct and Alternating Current |
| 5-2 | How an External Combustion Engine Works |
| 5-3 | Discover the Difference between Matter and Mass |
| 5-4 | Solids, Liquids, & Gases |
| 5-5 | The Parts of a Plant and Animal Cell |
| 5-6 | Photosynthesis |
| 5-7 | Fertilization and Seed Development |
| 5-8 | Asexual Reproduction |
| 5-9 | Reproduction by Spores |
| 5-10 | Sexual Reproduction in Animals |
| 5-11 | The Bones of the Skeleton |
| 5-12 | What is Global Warming and Climate Change? |
| 5-13 | The Earth's Climate and the Greenhouse Effect |
| 5-14 | Ways to Help Your Environment and Save Energy |
| 5-15 | How an Internal Combustion Engine Works |
| 6-1 | The Skeletal System |
| 6-2 | The Human Body and its Defense System |
| 6-3 | Communicable & Non-communicable Diseases |
| 6-4 | Speed, Refraction, and the Spectrum of Light are Investigated |
| 6-5 | Transparent, Translucent, and Opaque Materials are Explored |
| 6-6 | Reflection and Refraction |
| 6-7 | Speed and Wavelengths |
| 6-8 | Atoms and Elements |
| 6-9 | The Periodic Table |
| 6-10 | Atomic Weight |