Why is Water Important to Life?
How does a large body of water provide a more stable temperature for aquatic life?
Large bodies of water heat and cool slowly, which means there are no abrupt or quick changes for aquatic life.
How does water help keep your body temperature from becoming too high?
When you sweat, the water in the sweat evaporates. Heat energy is transferred from skin to air and the body gets cooler.
What are some ways people use water?
drinking, washing, cooking, transporting goods, recreation
What materials does water transport to the cells, in the cells, and away from the cells?
to the cells - nutrients (proteins) away from the cells - wastes
Why does water have to absorb six times as much heat to have the same temperature of sand?
Water has a specific heat about 6x higher than the specific heat of sand. So, it takes 6x more energy to warm it up.
What is water vapor's role in the greenhouse effect?
Water vapor absorbs some of the sun's energy as it is emitted from Earth, and sends it back toward Earth.
How is water important for photosynthesis?
It is NECESSARY for photosynthesis to occur. Water and carbon dioxide in the presence of light react to produce sugar and oxygen. No water = no photosynthesis
What is the relationship between ocean currents and Earth's temperature?
Ocean currents move thermal energy around Earth and this affects our climate. It helps stabilize Earth's temperatture so that temperature changes gradually.
