This study collection demonstrates a new way to actually experience the elements of the Periodic Table as colorful mineral samples that contain the individual elements! The elements represented are: hydrogen, lithium, beryllium, boron, carbon, oxygen, fluorine, sodium, magnesium, aluminum, silicon, sulfur, chlorine, potassium, calcium, titanium, iron, zinc, gallium, and gold. 20 samples are presented in a 5 inch by 7.5 inch snap-close plastic display caseAttractive Study Collection; A super way to get started in understanding the inter-connections between chemistry, earth science and the elements.
ترست بايلوت
منذ 3 أسابيع
منذ شهرين
