Praxis General Science

Praxis General Science (5435)

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About this exam

The Praxis General Science (5435) test is one of the Praxis Subject Assessments, the ETS testing program that states and educator-preparation programs use as part of teacher certification. Candidates take it to demonstrate the science content knowledge a beginning general science teacher is expected to have - most often people seeking a middle school or secondary science license, or a broad science endorsement rather than a single-discipline (biology, chemistry, physics) license. The published test outline organizes the content into four domains: the nature and impact of science and engineering; physical science; life science; and Earth and space science. Because the exam is broad rather than deep, success depends less on advanced coursework in one field and more on solid, connected understanding across all four, including scientific inquiry, engineering design, data interpretation, and the relationships among science, technology, and society. Start by checking your state's certification requirements, since each state sets its own rules and passing scores and you must register for the test your state accepts. Then use the free ETS study companion and test outline to map the content, take an official practice test to find your baseline, and build a study plan that weights your weakest domains most heavily. This page is an independent study resource and is not affiliated with, endorsed by, or sponsored by ETS; Praxis is a registered trademark of its respective owner.

What you'll study

Common questions

About Praxis General Science preparation

What is the format of the General Science test?

It is a multiple-choice test delivered by computer, either at a Praxis test center or through at-home testing. ETS publishes the current test outline and a free study companion that state the number of questions and the time limit for this specific test; confirm both there before you build a timing strategy, since details can change between revisions.

What score do I need to pass?

There is no single national passing score. Each state sets its own certification requirements, and ETS maintains a passing-scores-by-state reference so you can look up the requirement for the state where you are seeking licensure. Confirm with your state agency before registering, because registering for the wrong test can mean a wasted attempt.

How many questions are on the test, and how long is it?

Those figures are set by ETS and published in the official test outline and free study companion rather than fixed on this page. Look them up in the current ETS materials for test 5435, then practice with a timer using the real question count so your pacing on test day matches the actual format.

How much does the test cost, and are waivers available?

Fees vary by test and are listed on the Praxis registration pages, and ETS also publishes a fees and waivers page describing eligibility for reduced-cost registration. Check those official pages for the current amount before you register, and apply for any waiver early since approval usually must happen before you schedule.

How should I sequence my studying?

Begin with the free study companion to see exactly what each domain covers, then take a full-length practice test cold to establish a baseline. Spend the bulk of your remaining time on your two weakest domains, and finish with mixed review so you practice switching between biology, chemistry, physics, and Earth and space science questions the way the real test does.

What do candidates most often get wrong?

The usual mistake is over-preparing in one favorite science and neglecting the rest. Many candidates also underrate the nature-of-science and engineering domain, which covers experimental design, data and graph interpretation, and science-technology-society relationships. Those skills recur across the other three domains, so weakness there costs points everywhere.

Can I retake the test if I do not pass?

Yes. Rescheduling, retaking, and canceling are handled through your Praxis account, and the specific waiting periods and attempt rules are set out in the Praxis Information Bulletin. Read the current bulletin before you schedule a second attempt, because the retake rules and scoring timelines are the ones in force at the time you test.

Is a calculator allowed on the General Science test?

Calculator policy is test-specific, and ETS maintains a calculator-use page describing which tests permit an on-screen calculator and what to expect at the test center. Check that page for test 5435 before test day so you are not surprised by the tools available, and practice calculations both with and without one.

I am testing at home during the November 1, 2026 maintenance window. What do I do?

ETS has announced that on Sunday, November 1st, 2026, between 12:00 a.m. and 7:00 p.m. Eastern Time, Praxis registration services will be unavailable due to scheduled maintenance. If you are scheduled to test at home during that window, you can launch your test using the link in your confirmation email.

Is this page an official ETS resource?

No. This is an independent study platform, not affiliated with, endorsed by, or sponsored by ETS, and the practice material here is original rather than drawn from any commercial question bank. Use it to build and test your science knowledge, but verify all registration, fee, scoring, and test-day logistics directly with ETS and your state licensing agency.