Does matter ever just go away? Find out with this entertaining video that dives into a sweet investigation that involves cake and sweet drinks! Super scientists gain insight about the physical changes from chemical reactions and...

Heat things up in your high school chemistry class with a instructional video on combustion reactions. Starting off with a brief explanation of combustion and the different chemicals involved, this resource walks step by step through the...

Extremely short, this video is a computer animation of a double-pan balance with zinc and sulfur atoms on each side. The synthesis reaction between the two occurs, with the new zinc sulfide molecules. The balance is still balanced. This...

There is no narration in this video, just footage of a hand performing a chemical reaction set to magic-show-style music. Starting mass is shown in text. Solutions are mixed so that a precipitate forms, and then ending mass is shown....

Prepare a time lapse video of fruit candies acting as atoms moving toward each other to form ionic or covalent bonds. After showing it as a demonstration, have lab groups work together to create a similar video. Over the time period...

These slides summarize the properties that define materials. The categories of physical and chemical changes that are used to describe substances are listed and students will find the examples of those changes useful. You could set the...

In this conservation of mass worksheet, students balance 4 equations and identify the products, the reactants and the kind of reaction. Students then answer 5 questions about the conservation of mass.

In this atom worksheet, students read about Dalton's contributions to the structure of the atom. They answer five questions about Dalton's ideas, the law of multiple proportions and the law of definite proportions.

In this chemical reaction worksheet, students are given the details of an experiment where sodium chloride and silver nitrate are mixed in a chemical reaction. Students answer nine questions about the chemical reaction, they determine...

In this chemical reaction principles worksheet, students read about definite proportions and the law of conservation of mass. Students read about how to balance a chemical equation. Then students complete 20 fill in the blank, 2 short...

Students discover the law of conservation of mass though experimentation.  In this chemistry activity, students experiment with acid - base indicators to determine the presence of carbon dioxide. Students complete the labs with analysis...

In this chemical reactions worksheet, students review the law of conservation of mass, the principle of definite proportions, and balancing equations. This worksheet has 3 problems to solve.

In this law of conservation of mass worksheet, students solve 10 reaction problems by determining the mass of a reactant or product.

Learners investigate the concepts of conservation of mass and simple chemical reactions. Students complete lab experiments and record all observations as well as conduct experiments on their own to determine which reactions created...

Students discuss what the m in E=mc2 represent. They relate that mass in a chemical reaction is always conserved. Students convey that atoms rearrange themselves in chemical reactions to form different molecules and compounds.

Students research chemical components of coal, as well as environmental health impacts of mining and burning coal. They discuss conservation of mass as it relates to combustion of organic compounds.