Praxis Earth and Space Sciences
More study resources
Cheat sheet
Keep the key ideas within reach.
ExploreKey terms
Get comfortable with the vocabulary.
ExploreStudy plan
Give each week a clear focus.
ExploreCommon mistakes
Understand the traps and how to avoid them.
ExploreCase studies
Put your knowledge to work in context.
ExploreExam-day guide
Prepare for the day ahead.
ExploreAbout this exam
The Praxis Earth and Space Sciences assessment is a subject test used by states and educator-preparation programs as one piece of evidence that a candidate has the content knowledge to teach Earth and space science at the secondary level. Most candidates are pre-service teachers finishing a geoscience, geology, or science-education program, career changers with a science degree, or certified teachers adding an endorsement. It is not a teaching-methods test: the great majority of the content is disciplinary, spanning Earth's internal structure and history, minerals, rocks and surface processes, the oceans and hydrosphere, the atmosphere and weather, astronomy and the solar system, and Earth-space interactions such as seasons, tides, and climate. A smaller portion addresses scientific inquiry, data interpretation, and instructional decision-making. Because the exam is computer-delivered and entirely selected-response, preparation is mostly about breadth and recall speed: work through a college-level physical geology and historical geology text, add an introductory oceanography, meteorology, and astronomy survey, and practice interpreting maps, cross-sections, graphs, and spectra rather than memorizing isolated facts. Take a full-length practice test early to find weak domains, then re-study by domain. Current details on registration, fees, testing windows, score reporting, and passing requirements are published by the official testing body and by your state licensing agency; confirm them there before you register.
What you'll study
About Praxis Earth and Space Sciences preparation
What is the exam actually testing - teaching skill or science content?
Almost entirely science content. Expect questions that ask you to interpret a rock sequence, read a weather map, or explain a phase relationship. Pedagogy appears only in a small inquiry-and-instruction portion, typically framed as analyzing student data or choosing an appropriate investigation.
How hard is it compared with a college geoscience degree?
The depth is roughly introductory college level, but the breadth is wider than most degree programs require. A geology major is usually strong on rocks and history but rusty on astronomy, atmospheric dynamics, and ocean circulation, and those domains carry substantial weight.
What is the test format?
Computer-delivered selected-response questions, mostly standard four-option multiple choice with some questions built around a short passage, table, graph, or diagram displayed on screen. There is no constructed response or essay section, so no handwriting or long-form writing is involved.
How much time do I get, and how many questions?
The official testing body sets the current question count and time limit and revises them periodically, so check its website and your registration confirmation for the numbers that apply to your test date rather than relying on secondhand reports.
What score do I need to pass?
Passing scores are set by each state or licensing agency, not by a single national cutoff, and they change. Look up your state's current requirement on the official testing service site and confirm it with your preparation program before you register.
Can I retake it if I miss the mark?
Yes, retakes are generally allowed, but there is typically a waiting period before you can register again and you pay the fee each time. The exact waiting period and any limits are published by the official testing body; verify before scheduling a second attempt.
In what order should I study the domains?
Start with a full-length practice test to get a baseline. Then attack your two weakest domains first while you have the most energy, interleaving short review of strong domains weekly. Finish with Earth history and systems, which reward synthesis across the other domains.
Why do candidates usually fall short?
Three patterns dominate: neglecting astronomy and meteorology because they feel peripheral, memorizing vocabulary without practicing map, graph, and cross-section interpretation, and running out of time because they linger on calculation items instead of flagging and returning.
How long should I prepare?
Most candidates benefit from eight to twelve weeks of steady study, roughly five to eight hours a week, more if your degree is in biology or chemistry rather than geoscience. Front-load a diagnostic test so the remaining weeks target real gaps rather than comfortable review.
Is this the same as a general science certification test?
No. General science tests sample biology, chemistry, and physics alongside Earth science. This assessment goes deeper into geoscience, oceanography, meteorology, and astronomy, so check which one your state requires for the endorsement you want.