A collection of 5 challenging trivia quizzes about aquatic animals and ecosystems, one of which is also provided as a presentation that includes images and photographic evidence (answer keys/answers are included where possible), designed for English classes and students with an interest in wildlife.

This document is a very succinct delineation of how to use many principal components of English grammar and vocabulary. It is designed to allow non-native speakers to quickly and easily identify applicable grammar or vocabulary for their purposes. Its content consists of brief indications of how to use the following components/aspects of English grammar and vocabulary with examples to demonstrate usage: Singular and plural forms Indefinite articles Countable and uncountable nouns Common prepositions Possessive adjectives Descriptions of number and quantity Comparatives Superlatives Verb forms Common tenses Negations Question structures The passive voice Reflexive pronouns Modal verbs Common verb functions Conditionals Temporal references Phrasal verbs Mathematics