About this site

This site is made by Dr. Antonios Marsellos, a geology teacher and researcher in the Department of Geology, Environment and Sustainability at Hofstra University. He made it so that any student can practise the New York Earth and Space Sciences Regents for free, and read a plain explanation of every answer.

Author page: marsellos.github.io/research.

Where the questions come from

The questions are from past New York State Regents Examinations in Earth and Space Sciences. The examinations and their answer keys are published by the New York State Education Department (NYSED). The reference tables are NYSED's too, so this site links to them and does not copy them.

What this site is not

This is a personal project. It is not an official Hofstra University site, and NYSED does not run it or approve it. The explanations are written to help you learn. If you think a question or an explanation is wrong, tell us.