DNA molecules hold the secrets that make us unique. The fourth of 12 lessons explores the structure of DNA by building candy models. After building the models, young scientists break their models to begin the process of DNA replication....

Students complete a study guide using a website which is an animated primer on DNA, genes, and heredity. The Web site is organized around key concepts. The web links and study guide are included.

The presentation starts with the scientists who made discoveries about our solar system: Ptolemy, Copernicus, Galileo, Brahe, Kepler, and Newton. It also covers the planets, inner, outer, and Pluto, satellites, and an in-depth discussion...

Students work in pairs to create a creature and its habitat out of construction paper. Then students write a narrative to describe the animal and its habitat.

Students research the geologic time scales and the appearance of animals and plants during these eras. They complete a chart indicating the era, period and major events.

Pupils create a drawing of what an astronomer looks like. They explore their own assumptions of those who work in the sciences.