Generate a scientifically careful primary-school educational bitmap about the three states of water, using exactly three equal cards in one horizontal row on a warm white background. Center a single transparent ice cube on the left card, a small transparent glass containing liquid water on the middle card, and a simplified molecular inset on the right card showing exactly eight identical small blue water-molecule symbols widely separated in empty space, arranged in two columns and four rows so the count is unambiguous. Title exactly "Water states"; card labels exactly "Solid", "Liquid", "Gas". Place the gas card subtitle exactly "Invisible water vapor" so the illustration does not incorrectly equate a visible white cloud with gas. Use no steam plume or fog. The molecule symbols are a conceptual inset, not a scale model; do not show different chemical particles. Soft blue and pale teal palette, flat educational shapes with subtle shadow, clean readable sans-serif typography, generous margins. One 4:3 landscape bitmap. No transition arrows, formulas, temperature numbers, extra labels, logos or watermark.