Which compounds have only one valence bond, and which have two? Chemistry classes sort cards into groups of monovalent and polyvalent piles, according to their bonds. There are 20 cards to identify; half of them name the compound, while...

Who knew that one poster about George Washington could have so many learning possibilities attached to it? Here you'll find an attractive learning display on the first president of the United States, as well as worksheets and...

Writing the conclusion of an essay can often seem like a superfluous or daunting task. Support your young writers in understanding the various types and purposes of a conclusion paragraph, such as summarizing key points of a paper or...

Here is an extensive reading resource that addresses our climate change crisis. It thoroughly explains the greenhouse effect, related Earth cycles, and the history of climate change. Use it as part of the intended unit, published by the...

Young scientists construct an understanding of molecular compounds in this hands-on science lesson. Using LEGO® to model the atoms of different elements, students build molecules based on the chemical formulas of common compounds.