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 "express": "<a2ui>\nhdr = page_header(title=\"The Water Cycle\", subtitle=\"Explore how Earth continuously recycles its water supply through evaporation, condensation, and precipitation.\")\nh1 = heading(text=\"Evaporation\")\nb1 = body(text=\"Heat from the sun warms water in oceans, lakes, and rivers, causing it to turn into invisible water vapor and rise into the atmosphere.\")\nh2 = heading(text=\"Condensation\")\nb2 = body(text=\"As water vapor rises, it cools and changes back into tiny liquid water droplets, gathering together to form clouds high in the sky.\")\nh3 = heading(text=\"Precipitation\")\nb3 = body(text=\"When the water droplets in clouds become too heavy, gravity pulls them back down to Earth as rain, snow, sleet, or hail.\")\nh4 = heading(text=\"Worked Example & Quiz\")\nb4 = body(text=\"Example: A puddle disappears on a sunny day due to evaporation. Quiz: 1. What turns liquid water into vapor? 2. How do clouds form? 3. What is rain considered?\")\nroot = columns(cols=1, gap=\"1.5rem\", align=\"top\", items=[{blocks: [hdr, h1, b1, h2, b2, h3, b3, h4, b4]}])\n</a2ui>"
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