Flat vector science infographic, landscape orientation, pale blue background. A large Earth globe in the center showing green continents and deep blue oceans, wrapped by a horizontally stretched oval of ocean water forming two equal rounded bulges, one on the left side of Earth and one on the right side. A grey cratered Moon sits to the right of Earth, with one short curved arrow between the Moon and the right-hand bulge, the arrow touching only that bulge and not crossing any text. Inside the left bulge, in bold white letters, the words High Tide. Inside the right bulge, in bold white letters, the words High Tide. At the top, where the ocean layer is thin, the words Low Tide sit directly on the thin water band. At the bottom, where the ocean layer is thin, the words Low Tide sit directly on the thin water band. The word Earth is printed in white across the middle of the globe itself. The word Moon is printed in dark blue directly below the Moon. No leader lines, no callout lines, no arrows except the single short gravity arrow, no inset panels, no bottom strip, no extra labels, no paragraph text. Clean readable sans-serif typography, flat colors, crisp edges, friendly classroom poster style, no watermark, no logo.