Using simple materials, an informative lesson demonstrates the Law of Conservation of Matter and explains how to balance chemical equations. Young chemists perform experiments, analyze reactions, and balance chemical equations...

In this research instructional activity, 10th graders locate the answers to 3 questions about elements, compounds, and the half-life of elements. They write short answers on the chart.

Lead your class through the amazing world of isotopes as they investigate the various properties they contain and further understand their respective location on the periodic table. They explore half-lives and radioactivity as each...

Graph A goes with equation C, but table B. The short assessment task requires class members to match graphs with their corresponding tables, equations, and verbalized rules. Pupils then provide explanations on the process they used to...

In this chemistry review worksheet, students identify chemical changes, isotopes, ions, and chemical bonds. This worksheet has 32 multiple choice questions.

Students complete a Webquest which investigates the chemistry in items such as shampoo. They research the Internet, perform a lab experiment, and write a scientific lab report with their findings. Upon completion of the activities, the...

Eighth graders explore information about the periodic table of elements. Using the Internet, 8th graders choose one element to research. They complete an "Adopt and Element" information sheet. Using Microsoft Word, students create an...

Students observe a demonstration on how we see space between water molecules.  In this experimental lesson students discover what elements make up the things around them and discuss what they learned. 

A short slide show to display the characteristics of group 13 on the periodic table of elements. The atomic structure and reasons for their physical and chemical characteristics are not explained, and so this would only be an...

Words, words, words! This presentation uses plenty of them to define the atom, outline the history of what we know about atoms, and explain atomic and mass numbers. That's all! Informative, but not interesting, this slide show would be...

The majority of this presentation is a collection of diagrams and graphs that back your lecture on biogeochemical cycles. The last few slides define ecosystems and the Gaia hypothesis. You may find these slides valuable, but will...

Students use the basic principles of Chemistry to determine pH levels. Elements of the Periodic Table are also included in this lesson.

If tap water is more acidic than ocean water, why are we so concerned about ocean acidification? The third installment of a 23-part NOAA Enrichment in Marine sciences and Oceanography (NEMO) program focuses on carbon dioxide levels in...

Here is a copy of a past national challenge exam that you can use in your general chemistry course as a unit or semester review. Sixty multiple-choice questions query learners on properties of matter, stoichiometry, reactions, and...

In this elements worksheet, students complete a graphic organizer comparing lithium, sodium, and potassium observations. Then, they determine how these elements react with water. Students complete three fill-in-the-blank questions.

Students review atomic numbers, positive and negative charges, and the periodic table. They examine the relationships among protons and electrons, location of various elements, electron energy levels, and oxidation numbers.

In this Lewis structures worksheet, students identify and describe what Lewis structures or dot diagrams are and how they illustrate the valence electrons in an outer shell. Then they use a periodic table to determine the numbers of...

In this chemistry instructional activity, students use an interactive website to study the names and symbols of elements. They give the names and symbols of 69 common elements.

Students explore naturally magnetic elements. In this magnets instructional activity, students examine the periodic table of elements. Students discover the parts of an atom and determine which three elements are magnetic.

Young scholars determine the average mass of a new element using masses from three isotopes. In this chemistry lesson, students explain what an isotope is. They discuss their importance and uses.

In this atoms worksheet, students calculate the formula mass for chemical compounds. This worksheet has 12 problems to solve.

In this chemistry worksheet, students complete a crossword puzzle by rearranging 13 anagrams about elements. They create their own anagrams from 3 given words.

In this molecules worksheet, students review the parts of an atom and use element mass to determine isotopes. Students give the group, period, and classification for the given elements. This worksheet has 6 short answer questions and 17...

In this elements worksheet, students compare and contrast the characteristics of metals and non-metals. Students practice drawing Lewis dot diagrams and writing ion notation. This worksheet has 9 word problems, 8 matching questions, and...