GED Science Mastery: Complete Prep Course + Practice

Understand the GED science test structure and topics: life, physical, and earth and space science, within 90 minutes of 35–40 questions, emphasizing graph and diagram interpretation and data analysis.

Explore prokaryotic and eukaryotic cells and their organelles—nucleus, mitochondria, cytoplasm, and cell membrane—plus plant- and animal-cell differences, specialized cells, and diffusion, osmosis, and active transport.

Explore mitosis and meiosis: mitosis enables growth and repair, yielding two identical somatic cells; meiosis enables reproduction, yielding four non-identical cells with half the chromosomes in sex cells.

Discover how homeostasis balances body temperature, blood sugar, and water, and how cellular respiration in mitochondria converts glucose to ATP through aerobic and anaerobic pathways.

Explain nutrition and a balanced diet, detailing ingestion, digestion, absorption, assimilation, and waste removal; cover carbohydrates, proteins, fats, vitamins, minerals, water, fiber, energy needs, and nutrition labels.

Examine matter's states—solids, liquids, gases, and plasma—and how atoms and elements form, with protons, neutrons, and electrons building nuclei and electron clouds, defining atomic number, isotopes, valence electrons, and bonding.

Discover how elements are pure substances of one atom, defined by atomic number and mass, and how the periodic table groups metals, non-metals, metalloids, and isotopes across periods and groups.

Master mixtures, including homogeneous solutions like salt water and air, and heterogeneous ones like oil and water, and learn solute, solvent, solution, and solubility concepts, including unsaturated, saturated, and supersaturated.

Explore how heat transfers cause temperature changes or phase changes, define specific heat capacity and latent heat, and explain heating and cooling curves, fusion and vaporization, condensation, sublimation, and deposition.