DNA, Crime and Law Enforcement
Civil rights meets biotechnology in a instructional activity that scrutinizes the collection of DNA of citizens who have been arrested, but not yet convicted of a crime. Real-life cases are examined in which the DNA of a relative was...
9th - 12th Science CCSS: Designed
Matter and Energy: Equations and Formulas
Using simple materials, an informative instructional activity demonstrates the Law of Conservation of Matter and explains how to balance chemical equations. Young chemists perform experiments, analyze reactions, and balance chemical...
9th - 12th Science CCSS: Adaptable
Chemistry Revision Themes: Quick Crosswords
A collection of 16 different chemistry crosswords provides variety in the ways that your class reviews chemistry vocabulary and concepts. Because the topics for each range from the introductory periodic table of elements to the complex...
6th - 12th Science
2000 U.S. National Chemistry Olympiad National Exam - Part I
The National Chemistry Olympiad exams are comprehensive tests covering an entire year of chemistry concepts. You can use them as practice for competing in the challenge, or simply as a review, or as an actual final exam for your general...
9th - 12th Science
The Law of Conservation of Mass
This short video simply explains the Conservation of Mass with graphics that show the atoms being conserved in pictures of balanced equations. The connection between mass and energy is explained and Einstein's energy equation is mentioned.
5 mins 7th - 12th Science CCSS: Adaptable