sci 3rd sheet

• oxygen: releases energy in blood
• blood: act like a transport system by bringing materials to cells and gathers waste from cells
• sweat: cools down the body
• saliva: lubricates food for swallowing and begins chemical digestion
• urine: eliminates dissolved wastes from the body
• stomach acid: Aids chemical digestion of food
• 4 things that affect flow rate: - pressure - diameter of tube - surface area - type of fluid
• calculate flow rate: mL/s or L/s
• 2 ways to find volume: L x W x H or displacement method
• solids are measured in cm^3, gases and measured in m^3, and liquids are measured in litres
• 1L= 1000mL=1000cm^3
• yeah so cool: 1cm^3=1mL
• calculate density: mass/volume
• Solids and liquids measured for density is g/mL or g/cm^3 while gases are kg/m^3
• substance that have high flow rate: water, oil, vinegar
• slow as molasses in January means: when fluids are cooled, it flows slower