======Melting Ice and Rising Sea Levels====== **Materials: **{{$demo.materials_description}}\\ **Difficulty: **{{$demo.difficulty_description}}\\ **Safety: **{{$demo.safety_description}}\\ \\ **Categories:** {{$demo.categories}} \\ **Alternative titles:** Sea Ice vs Land Ice Experiment ====Summary==== {{$demo.summary}} ====Procedure==== -Fill a clear container halfway with water. -Add floating ice cubes to represent sea ice. Mark the water level and wait for the ice to melt. Record the water level again. -In a separate setup, place ice cubes in a smaller cup or container above the water, so melting ice drips in like land ice. Mark the starting water level. When the ice melts, measure again. ====Links==== Melting Ice Experiment: Discover How Ice Impacts Sea Levels - TheDadLab: {{youtube>BHyWoyB9Dbc?}}\\ Evidence for Climate Change: Melting Ice Demonstration - Perimeter Institute for Theoretical Physics: {{youtube>9UnsBCBEWsQ?}}\\ 📄 See ice melting! - Scitech: [[https://www.scitech.org.au/experiment/what-is-causing-sea-levels-to-rise/]]\\ 📄 How Melting Ice Causes Sea Level Rise - NASA Jet Propulsion Laboratory: [[https://www.jpl.nasa.gov/edu/resources/project/how-melting-ice-causes-sea-level-rise/]]\\ ====Variations==== *Add food coloring to help see the water level more clearly. *Place small rocks or toys on “land” ice to represent glaciers melting. ====Safety Precautions==== *Handle water carefully to avoid spills. *If using glass containers, place them on a sturdy surface. ====Questions to Consider==== *Why doesn’t melting sea ice raise sea levels? (Because it’s already floating, so it displaces the same volume of water.) *Why does melting land ice raise sea levels? (It adds new water to the ocean that wasn’t there before.) *How does this help explain global sea level rise? (Warming causes glaciers and ice sheets on land to melt, adding more water to the oceans.)