Spelling: Words with VCe and long and short vowels
Grammar: Irregular Plurals and Noncount Nouns
Some nouns show the plural in different ways (ex: child – children, foot – feet, mouse – mice).
Some nouns use the same form for singular and plural (ex: deer, fish, sheep, moose).
Some nouns cannot be counted. They have only one form for singular or plural (ex: wood, snow, rain, sunshine).
Scientific and Academic Vocabulary: city, desert, rainforest, vine, weed, main idea, details, diversity, environment, organism, protect, unique