Assessment Questions Activity Name: Adventures in Density Grade Level: 6-8 Assessment Questions: 1. True or False. Heating and cooling water affect its density. 2. True or False. Water is one of the few substances on Earth found in all three states (solid, liquid, gas). 3. Which state of water is the least dense? gas or water vapor 4. Name three things that affect the density of water. salinity (or salt), temperature, pressure 5. Name two things that affect ocean currents. wind, density differences 6. Define thermohaline circulation. It is the ocean flow driven by water density. 7. Which ocean transports heat farther north? Atlantic 8. Which affects water density more? temperature 9. Where is the densest water found in the ocean? on the bottom 10. Which state of water is the most dense? cold water