Синлишем which words are countable and which uncountable? white the words from the box under two categories sand, juice, sugar, bread , sea , hill, jam , cake , raincoat, daybook, butter, snow

Sand    juice    sugar    bread   jam   butter   snow-uncountable (нельзя сосчитать)
sea    hill   cake   raincoat    daybook -countable (можно сосчитать)