Learn what geological faults are, how they form, types of faults, key terminology, fault rocks, and their impacts on Earth and people. Faults in Geology – Definition, Types, and Impacts This entry was posted on February 17, 2026 by Anne Helmenstine (updated on February 22, 2026)
Plasma is the fourth state of matter. Learn what it is, how it forms, its properties, types, examples, and how it differs from other states. Plasma State of Matter in Physics This entry was posted on February 14, 2026 by Anne Helmenstine (updated on March 11, 2026)
Learn what osmosis is, how it works, and why it matters in biology, medicine, and everyday life. Includes examples and key terms. Osmosis – Definition, Process, and Importance in Biology This entry was posted on February 11, 2026 by Anne Helmenstine (updated on June 20, 2026)
Learn what transpiration is, how it works in plants, why it's important, and how it affects the water cycle and climate. Transpiration – Definition, Process, and Functions This entry was posted on February 10, 2026 by Anne Helmenstine (updated on February 22, 2026)
Learn about the human urinary system, including its structure, functions, urine formation, regulation, and common disorders. Urinary System – Anatomy, Functions, and Health This entry was posted on February 7, 2026 by Anne Helmenstine (updated on August 4, 2026)
Why does the Moon look bigger near the horizon? Learn the science behind the Moon illusion, how to test it, and why it’s all in your head. Why the Moon Looks Bigger Near the Horizon – Moon ... This entry was posted on February 4, 2026 by Anne Helmenstine (updated on March 31, 2026)
The love potion lab is a fun Valentine’s Day chemistry project with color-changing, fizzy, and glowing potions that teach real science. Love Potion Lab – A Valentine’s Day Chemistry Project This entry was posted on February 3, 2026 by Anne Helmenstine (updated on February 15, 2026)
Why does metal spark in the microwave? Learn the science behind microwave sparks, how metal causes arcing, and whether it's dangerous. Why Does Metal Spark in the Microwave? This entry was posted on January 31, 2026 by Anne Helmenstine (updated on April 8, 2026)
Habitat definition, types, and examples with details on microhabitats, adaptations, habitat loss, and protection strategies. Habitat Definition, Types, and Examples This entry was posted on January 28, 2026 by Anne Helmenstine (updated on February 8, 2026)