Grade and/or Subject: Grade 5 Science, Earth Science, Electives - Oceanography and Environmental Science, Grade 5 Math - Data Analysis, Probability & Statistics Strand Description:   Predict what will happen when salt and freshwater are mixed. Test your predictions by watching a video. Repeat with hot and cold water. Extend your learning through animations depicting the influence of temperature and solutes on the "heaviness" or density of water. Test your understanding by "dragging" layers to form a water column or through a 5-item quiz. Use graphs to compare your predictions and observations with other classes. Virginia Standards of Learning:   Grade 5 Science (5.1, 5.6) Grade 5 Math (5.18) Earth Science (ES.1, ES.11) Electives - Oceanography and Environmental Science NCTM Standards:   Represent data using tables and graphs; interpret data. NSE Standards:   Science as inquiry; properties and changes of properties in matter; structure of Earth system; use of mathematics in science. Materials:   Computer with Internet Access