QUESTIONS!!!!

LARGE CLOUDS ARE MORE LIKELY TO FORM DURING A HOT DAY WITH HIGH HUMIDITY.WHY?

• sun heats land up,through radiation
• land absorbs heat and becomes hot thus heating the air above it
• hot air rises while the colder air ontop sinks due to difference in density
• convection currents are thus set up
• as the hot air rises,it cools condenses and forms clouds
• on cold days,there is a decrease in rate of covection currents being set up=less clouds form

EXPLAIN WHY WATER WOULD BOIL FASTER IN A KETTLE IF A LID IS PLACED ON IT?

• when heat is applied to kettle(metal),kettle boils water
• kettle lid is made of metal which is shiny and smooth
• little heat will thus be emitted through radiation
• also,when lid is covered over kettle,less heat will be lost through convection
• because the hot air that rises cannot escape