Question 5
Three identical small plastic cups contain equal amounts of hot water, three-quarters full. One cup is wrapped in aluminium foil and insulating material, placed in a larger cup supported by sand, with extra insulation in the gap, a lid and plastic wrap sealing the larger cup. A second cup is uninsulated with a lid; the third is uninsulated without a lid. Thermometer bulbs dip fully into the water. The cups are kept in the same surroundings. Handle hot water carefully; an adult should prepare any holes with a knife cutter.
State three steps you can take to make sure your measurements are accurate and consistent.
State three steps you can take to make sure your measurements are accurate and consistent.
