Covering 23% of the continent and holding 64,900 cubic kilometers of water, the Great Artesian Basin is the primary source of water for much of inland Australia. Using detailed student worksheets, experiments, and case studies,...

Was the Southern states' decision to secede from the Union protected by the United States Constitution? Eighth graders discuss the constitutionality of the South's justification for secession, particularly the secession of South...

The written form for 345 is three-hundred forty-five, where as the word form for 70% is seventy percent. Here, young mathematicians read 10 sentences and write the word form of each number in the sentences.

In this everyday editing worksheet, the grammatical errors include capitalization, punctuation, spelling, and grammar. Learners correct these grammatical mistakes in a short paragraph about Leap Second.