When water is a solvent in a chemical equation, we consider it an aqueous solution. Scholars match the name of four states of matter to their proper symbol in a chemical equation. Four puzzles provide repetition to help pupils remember...

In this online interactive grammar skills worksheet, students examine 10 sentences that are missing words and select the appropriate words to complete each of the sentences and match them to the sentences. Student answers are...

In this intermediate sentence completion exercise 35 learning exercise, students working online, choose the correct word(s) to complete the sentence, with immediate feedback.

[Free Registration/Login Required] Explore the composition of air and learn about the different atoms and molecules that we breathe every day.