Earth Science, Geologic Time & Fossils

Mineral

Types & Uses

Andesite

rock

Brocken Spectre

natural phenomenon

Polar Vortex

meteorology

Borate Mineral

Hubbert, Marion King

American geophysicist

Metallurgy

Definition & History

Blastoid

fossil echinoderm

Titanite

mineral

Lucy

fossil hominin

Dire Wolf

Size, Origins, & Characteristics

Temperature-humidity Index

meteorological measurement

Bascom, Florence

American educator and scientist

Agglutinate

geology

Spilite

rock

Ungava-Quebec Crater

crater, Quebec, Canada