General Science:
* Gravity: The force that attracts all objects with mass towards one another.
* Gas: A state of matter that has no fixed shape or volume.
* Genome: The complete set of genetic instructions in an organism.
* Geology: The study of the Earth's physical structure and history.
* Growth: An increase in size or mass.
Biology:
* Genetics: The study of genes and heredity.
* Genus: A taxonomic rank below family and above species.
* Gills: Respiratory organs found in aquatic animals.
* Glycogen: A complex carbohydrate stored in the liver and muscles.
* Germ: A microorganism that can cause disease.
Chemistry:
* Gas chromatography: A technique used to separate and analyze different components of a mixture.
* Gram: A unit of mass in the metric system.
* Glucose: A simple sugar that is the primary source of energy for the body.
* Glycerol: A colorless, sweet-tasting liquid used in various applications.
Physics:
* Gravitational force: The force of attraction between any two objects with mass.
* Gauge: A measure of the strength of a force field.
* Gamma rays: High-energy electromagnetic radiation.
* Geophysics: The study of the Earth's physical properties and processes.
Other:
* Galaxy: A vast collection of stars, gas, and dust held together by gravity.
* Greenhouse effect: The warming of the Earth's surface due to the trapping of heat by gases in the atmosphere.
* Global warming: The gradual increase in Earth's average temperature.
This is just a small sample of the many science words that start with "g". There are many others depending on the specific scientific field you are interested in.
