Crime Lab Chemistry (CLC)
Children assume the role of crime lab chemists and solve a crime using paper chromatography techniques. They explore similarities and variations of fingerprints and use a classification system to solve a crime. This unit combines two Great Explorations in Math and Science publications, Crime Lab Chemistry and Fingerprinting. They were developed by the Lawrence Hall of Science, University of California, Berkeley.

Plant Growth and Development (PGD)
Children plant and observe the growth of Brassica rapa. Records of growth are kept and used to construct charts and graphs. The students pollinate the flowers with dead bees and harvest seeds. This unit was developed by the National Science Resources Center with support from the National Academy of Sciences and the Smithsonian Institution.

Sound (SOU)
Children investigate characteristics of sound. They explore ways that sounds are produced, received, and used in everyday life. Emphasis is placed on developing questions, seeking answers through investigations, recording data, and communicating results. This unit was developed by the National Science Resources Center with support from the National Academy of Sciences and the Smithsonian Institution.