Definitions:

- STEM K12 USA Inc: Refers to the organization providing the services and products through the website www.stemk12usa.com.

- STEM publications: Refers to the publications, materials, or resources related to science, technology, engineering, and mathematics (STEM) offered by STEM K12 USA Inc.

- AstroFinnScience: Refers to the specific division or department within STEM K12 USA Inc that focuses on astronomy and space science, videos & blogs related to department, etc.

- Services: Refers to the various offerings, including but not limited to online courses, educational content, forums, and interactive features provided by STEM K12 USA Inc through www.stemk12usa.com.

- Products: Refers to any physical or digital goods, such as books, e-books, software, or educational kits, offered by STEM K12 USA Inc.

- Users: Refers to individuals who access or use the services or products provided by STEM K12 USA Inc through www.stemk12usa.com."

-The term "girl" generally refers to a young female human, typically a child or adolescent. However, the definition may vary depending on the specific context or legal definitions in different jurisdictions. Sex refers to “the different biological and physiological characteristics of males and females, such as reproductive organs, chromosomes, hormones, etc.”

-Gender refers to "the socially constructed characteristics of women and men – such as norms, roles and relationships of and between groups of women and men.