Resources for Ages 12–13

Exploring the World of Astronomy

Master Books

Exploring the World of Biology

Master Books

Exploring the World of Chemistry

Master Books

Exploring the World of Mathematics

Master Books

Exploring the World of Physics

Master Books

Exploring the World Through Cartography

Classical Conversations

Eyewitness Astronomy

DK

Fossils and Rock Layers - Earth History

Fossils and rock layers | The geosphere | Middle school Earth and space science | Khan Academy

Fractions on a Number Line Song | 3rd Grade & 4th Grade

George Mueller: The Guardian of Bristol's Orphans

Gerunds, Participles, and Infinitives

Gladys Aylward: The Adventures of a Lifetime

God's Gift of Language C

Abeka

Grammar and Composition I

Abeka

Grammar and Composition II

Abeka

Grammar Guide: Identifying Simple Subjects & Predicates

Grammar Rap Song #75 Verbs: Irregular/Principal Parts Present Infinitive/Participle, Past Indicative

Grammar/Writing Rap Songs #80 Verbals (Participles, Infinitives, and Gerunds) Explained

Great Lakes Geography/Great Lakes North America