Science

An oxide is a binary compound that we obtain upon the reaction of oxygen with other elements. Acidic oxide is an oxide that reacts with…

An acid anhydride is a compound with two acyl groups bound to a single oxygen atom. It is a type of chemical compound derived by…

Seychelles (/seɪˈʃɛlz/ ; French: sɛʃɛl or seʃɛl), officially the Republic of Seychelles (French: République des Seychelles; Creole: La Repiblik Sesel), an island republic in the…

Definition – Trap Rock, also known as either trapp or trap, is a name used in the construction industry for any dark-colored igneous rock that…

Palawan (pronounced /pəˈlɑːwɑːn/) island, the southwestern-most large island of the Philippines. It is officially known the Province of Palawan (Cuyonon: Probinsya i’ang Palawan / Paragua;…

The actinide is a periodic series of metallic elements with atomic numbers 89 to 103, from actinium through lawrencium. This series encompasses the 15 metallic chemical…

Definition – Schist (pronounced /ʃɪst/ SHIST), megascopically crystalline rock that has a highly developed schistosity, or tendency to split into layers. Banding (foliation) is typically…

Bora Bora (French: Bora-Bora; Tahitian: Pora Pora), volcanic island, Îles Sous le Vent (Leeward Islands), is a 30.55 km2 (12 sq mi) island group in…

Yosemite National Park (/joʊˈsɛmɪti/ yoh-SEM-i-tee) is an American national park located in the western Sierra Nevada of Central California, bounded on the southeast by Sierra…

Definition – Pumice ( /ˈpʌmɪs/), called pumicite in its powdered or dust form, is a light-colored, extremely porous igneous rock that forms during explosive volcanic…

El Capitan (Spanish: El Capitán; The Captain or The Chief), is perhaps the most sublime feature in all of Yosemite Valley, and second only to…

Definition – Skarns or tactites, in geology, metamorphic zone developed in the contact area around igneous rock intrusions when carbonate sedimentary rocks are invaded by…