1. Human Body and Organs: Labeling organs (brain, heart, lungs, stomach); matching each to its function (e.g., heart pumps blood, lungs take in oxygen); organs work together to keep the body alive. 2. States of Matter and Dissolving: Identifying liquids (milk, ink); liquids flow and take the shape of containers; dissolving investigations using water and oil; conclusions about solubility based on observed results. 3. Earth, Moon, and Space: Completing moon phase diagrams; moon takes 28 days to orbit Earth; model limitations; footprints on the moon link to impression fossils. 4. Light and Shadows: Shadows form when light is blocked; distance affects shadow size (closer = bigger); ruler used to measure; other variables like light source also affect shadows. 5. Living Things and Food Chains: Food chain roles (producer = leaf, consumer = mongoose); shared life processes (e.g., movement, reproduction); separating sand and water using filtration equipment. 6. Scientific Investigations: Growth experiment with light/dark conditions; data interpretation disproves prediction; fair testing (same ruler, conditions); friction slows toy car on rough surface.