Praxis General Science CK (Praxis General Science: Content Knowledge (5435)) — Free Online Mock Test
Praxis · ~135 selected-response in 2.5h. Physical science, biology, earth & space science, and scientific methodology across the sciences. · Official language: English.
Praxis General Science CK exam at a glance
Praxis General Science CK key facts & eligibility
| Conducting body | ETS (Educational Testing Service) — The Praxis Tests |
|---|---|
| Official website | ets.org/praxis ↗ |
| Mode | Praxis General Science: Content Knowledge, test code 5436 (the revised version of the former 5435, which is still accepted) — a broad science licensure exam for prospective secondary science teachers. It is a computer-delivered selected-response test. |
| Frequency | Offered by appointment during testing windows at Praxis test centres and online. |
| Scoring & marking | It has about 135 selected-response questions in 150 minutes, with a periodic table and a table of physical constants provided. Content spans the nature and impact of science and engineering, physical science (physics and chemistry), life science, and earth and space science. Each state sets its own passing score. |
| Score validity | Praxis scores are typically reportable for about 10 years; states set their own recency rules. |
| Language | English. |
Who is eligible for Praxis General Science CK?
Taken by prospective secondary science teachers for state licensure; requirements are set by each state.
Last verified July 2026 against ETS — Praxis General Science: Content Knowledge (5436). Always confirm current details on the official website before you register.
Praxis General Science CK section breakdown
The Praxis General Science CK mock test on Wrexa Edge replicates the real exam's section structure — same names, same question count per section, same time limits. No inter-section breaks — the timer runs continuously.
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Praxis General Science CK (60 Q)
Praxis General Science CK scoring & marking scheme
Strategy: Praxis General Science CK has no negative marking. Attempt every question — blank answers cost you potential marks but cannot pull your score down.
Scale: Praxis General Science CK (pass 700/1000).
How Praxis General Science CK is conducted
- Mode
- Test format
- Backtracking
- Mark for review
Praxis General Science CK time strategy
With 60 questions in 150 minutes, you have about 150 seconds per question on average. Successful candidates aim for the following pacing on each section:
- Praxis General Science CK (60 Q)
Wrexa Edge's analytics show your actual time-per-question after every mock so you can spot which sections you're losing time on.
Praxis General Science CK topics covered
Across the 50 Wrexa Edge variants of Praxis General Science CK, the following topics appear most often (sample distribution from one variant):
Praxis General Science CK (60 Q)
- Biology — Fundamentals · 20
- Chemistry — Fundamentals · 20
- Physics — Energy · 4
- Physics — Circular Motion · 4
- Physics — Mechanics · 4
- Physics — Electricity · 3
- Physics — Waves · 3
- Physics — Electromagnetism · 2
Praxis General Science CK difficulty calibration
Intermediate tier. Intermediate-level: assumes a working command of the syllabus. Most candidates need 2-4 months of focused prep.
Praxis · ~135 selected-response in 2.5h. Physical science, biology, earth & space science, and scientific methodology across the sciences. · Official language: English.
Verified content — Wrexa Edge's Praxis General Science CK bank has been deeply curated with real exam-aligned content (estimated 100% syllabus coverage).
How Wrexa Edge prepares you for Praxis General Science CK
- Real test-day interface
- 50 distinct variants
- Detailed analytics
- Spaced repetition (Notebook)
- Optional proctoring
- Free to start
Expert take: what Praxis General Science CK really tests
Praxis General Science: Content Knowledge (5436, the revised form of 5435) is a broad secondary-science licensure exam — about 135 selected-response questions in 150 minutes, with a periodic table and constants provided. It spans physical science (physics and chemistry), life science, and earth and space science. States set their own passing scores.
Preparation tips
- Prepare across all four areas — this is a breadth exam.
- Shore up your weakest science; a gap there costs disproportionately.
- Confirm you register for the current code (5436); 5435 is still accepted.
⚠️ Common mistakes to avoid
- Preparing deeply in one science and neglecting the others.
- Not learning your specific state’s passing score.
Praxis General Science CK study plan
A phase-by-phase roadmap from your first concept to test-ready. Stretch or compress each phase to fit the time you have before your attempt.
- Physics and chemistry fundamentals
- Life-science fundamentals
- Selected-response practice
- Earth and space science
- The nature and practice of science
- Timed question sets
- Full ~135-question timed practice
- Shore up your weakest science area
- Meet your state’s passing score
Where Praxis General Science CK can take you
A strong Praxis General Science CK result opens up these careers and higher-study paths:
- Secondary general-science licensure
- Cross-discipline mastery
- State-set cut score
- Breadth focus
Best books & official prep for Praxis General Science CK
- Praxis General Science 5436 Study Companion — ETS
- Integrated-science review guides — Various
Official practice: Use the free ETS Study Companion for 5436 and build broad coverage across biology, chemistry, physics and earth/space science.
Previous-year papers: ETS provides official practice questions; there are no released full past papers.
Frequently asked questions
- What is the Praxis General Science CK exam pattern?
- Praxis General Science: Content Knowledge (5435) contains 60 questions across 1 section: Praxis General Science CK (60 Q). Total duration is 150 minutes (about 150 seconds per question).
- Does Praxis General Science CK have negative marking?
- No — Praxis General Science CK has no negative marking. Each correct answer is worth 1 mark, so attempt every question.
- How is Praxis General Science CK scored?
- Scaled score range: 100 to 1000. Praxis General Science CK (pass 700/1000).
- How can I practise Praxis General Science CK online for free?
- Wrexa Edge gives you 10 free full-length Praxis General Science CK mock tests — with instant scoring, detailed explanations and analytics — plus 40 more with Pro. Start practising in under a minute, no card required.
- What is the difficulty level of Praxis General Science CK?
- Praxis General Science CK is rated Intermediate difficulty on Wrexa Edge. Intermediate-level: assumes a working command of the syllabus. Most candidates need 2-4 months of focused prep. Praxis · ~135 selected-response in 2.5h. Physical science, biology, earth & space science, and scientific methodology across the sciences. · Official language: English.
- How long is the Praxis General Science CK exam?
- Praxis General Science CK runs for 150 minutes total. On Wrexa Edge the timer is enforced exactly as on the real exam — including no inter-section breaks.
- What topics are covered in Praxis General Science CK?
- Praxis General Science CK is split into: Praxis General Science CK (60 Q). Each section is timed and weighted separately. Praxis · ~135 selected-response in 2.5h. Physical science, biology, earth & space science, and scientific methodology across the sciences. · Official language: English.
- What tools or aids are allowed during Praxis General Science CK?
- No special tools are required. Note: real exam is proctored — Wrexa Edge mirrors this with a webcam-based proctoring flow you can enable.
- Is the Praxis General Science CK test adaptive?
- No — Praxis General Science CK is a fixed-form (linear) test. Every candidate sees the same number of questions per section.
- How many Praxis General Science CK mock tests does Wrexa Edge offer?
- Wrexa Edge generates 50 distinct Praxis General Science CK variants — each with different question content, not just shuffled options — the first 10 free for everyone and 40 more with Pro. That's 3000 unique practice questions in the real test-day interface.
- Is there a free Praxis General Science CK test series 2026?
- Yes. The Wrexa Edge Praxis General Science CK test series for 2026 gives you 10 free full-length mock tests (50 in total) plus subject-wise and topic-wise tests — instant scoring and detailed analysis, no card required.
- Are Praxis General Science CK previous year question–style papers included?
- Every Praxis General Science CK mock is modelled on the official exam pattern and the style of previous years' papers — the same 60-question structure, sections and marking — so your practice mirrors the real paper you'll sit.
- Which is the best free Praxis General Science CK mock test online?
- Wrexa Edge's Praxis General Science CK mock test replicates the real exam interface, timing and marking scheme, with instant score, section-wise analysis and 50 fresh variants — a strong free choice for 2026 preparation.
- Can I take the Praxis General Science CK mock test on mobile?
- Yes. Praxis General Science CK mock tests run in any browser on mobile, tablet or desktop — no app or download needed. Start on your phone and your progress and analytics sync when you sign in.
- What is the Praxis General Science CK syllabus?
- The Praxis General Science CK syllabus maps to its 1 section: Praxis General Science CK (60 Q). Wrexa Edge's mock tests cover the complete syllabus topic by topic — see the topics-covered breakdown above — so you practise every area at real exam difficulty.
- What is the eligibility for Praxis General Science CK?
- Eligibility for Praxis General Science CK — age, qualification and number of attempts — is set by the official conducting body and can change each cycle, so always confirm the current official notification before applying. Wrexa Edge focuses on realistic Praxis General Science CK practice: 10 free full-length mocks in the exact exam pattern, ready whenever you are.
- When is the Praxis General Science CK exam and how should I prepare?
- Official Praxis General Science CK exam dates are announced by the conducting body for each cycle — check the latest notification for the current schedule. To be ready, follow a phased study plan and take full-length timed mocks; Wrexa Edge gives you 10 free Praxis General Science CK mocks with instant scoring so you can track your readiness week by week.
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