Exploring the Concept. 1  Provide the materials to the students. 2  Instruct students to cover their desktops with paper. 3  Have students examine the sugar cubes with the magnifying glasses. Students should record their observations on the observation sheet provided. They can either draw or describe the sugar cubes.
Gold is a precious metal used around the world in jewelry, electronics and even dentistry. Extraction of gold requires mining for it beneath the Earth's surface. Mining for gold has some negative effects, including erosion, the use of cyanide, loss of biodiversity and disruption of indigenous communities. Erosion Erosion can strip away much needed soil.
The California Gold Rush affected many things. One of which includes technology. As people from all over the world rushed to California in search of precious metal, new techniques were developed to make mining a tad easier. Eventually, inventions would be made. The miners of the California Gold Rush started off with a simple pan to sort nuggets and flakes of gold from dirt, sand, and water. Soon, more complex tools would be developed. These included the rocker and then the sluice, two improvements of the pan.