Best DAT YouTube Channels for Free DAT Prep in 2026

The best DAT YouTube channels for biology and chemistry review are general science channels, not DAT-specific ones: Crash Course, Khan Academy, Professor Dave Explains, Leah4Sci, and AK Lectures all cover the content the science section actually tests, for free. For PAT, the honest answer is that YouTube is thin, because PAT is a visual skill built through repetition, not a lecture-driven one. Either way, watching is step one, not the whole plan — the score comes from what you do after you close the video.

We've both scored in the 97th-plus percentile on the DAT and now build practice tools for a living. Here's the ranking, section by section, and the case for why passive video has a ceiling that only active, timed practice breaks through.

Best DAT YouTube Channels for Biology and Chemistry

There is no channel built specifically for the DAT's Survey of Natural Sciences that beats a good general science channel for raw content review. The DAT tests undergraduate-level biology, general chemistry, and organic chemistry, and these channels were built to teach exactly that.

1. Crash Course (Biology & Chemistry). Best for a fast conceptual overview when a topic feels completely unfamiliar. Short, memorable, well-produced — but too shallow on its own for DAT-level depth, so use it as a warm-up, not a full review.
2. Khan Academy. Best for structured, free review with practice problems attached to the videos. The playlists are organized logically and the practice sets give you a first taste of active recall, though the question style isn't calibrated to the DAT's specific format or difficulty.
3. Professor Dave Explains. Best for organic chemistry mechanisms explained step by step. The long-form format is great for genuinely confusing reaction types, but the length also makes it easy to watch passively without taking a single note.
4. Leah4Sci. Best for organic chemistry and biochemistry taught with pre-health students specifically in mind, heavy on mnemonics and memory tricks. Built with MCAT-level depth in places, so scale back where the DAT doesn't require that much detail.
5. AK Lectures. Best for clear, no-frills whiteboard explanations of general and organic chemistry when you just need the mechanism or concept restated plainly.

Notice what's missing from all five: DAT-style timing, answer choices, and traps. That gap is what full-length practice and a real question bank are for — we cover building that bridge in our guide to the best DAT Anki decks and free flashcards, which pairs well with video review for retention.

Is There a Good DAT YouTube Channel for PAT?

Here's the honest answer nobody wants to hear: not really, and that's not a channel-discovery problem, it's a structural one. The Perceptual Ability Test is six visual subsections — keyholes, top-front-end, angle ranking, hole punching, cube counting, and pattern folding — and PAT skill comes from solving many different, novel figures under time pressure, not from watching a narrator solve the same three examples on a screen.

A few well-established test-prep companies post free PAT sample videos, worth a quick look to learn each subsection's rules before you dive in. But once you know the rules, more watching stops helping. What actually moves your PAT score is volume of fresh, generated figures with immediate feedback, which is why we wrote a separate breakdown of free PAT practice tools, Quizlet sets, and generators — that's the better free-resource category for this section, not YouTube.

Why Watching DAT YouTube Videos Has a Ceiling

Watching a video and understanding it in the moment feels like studying, and in a limited way, it is. But recognizing a concept while someone else walks you through it is a different mental task than retrieving that same concept cold, on a question you've never seen, with a clock running.

That gap between recognition and recall is the single biggest reason students plateau after months of "studying" that was mostly watching. The DAT never asks you to explain a mechanism along with a narrator — it hands you a novel question, gives you roughly a minute or less, and expects a confident answer with no pause button.

Active recall closes that gap: attempt a question first, get it wrong, and only then find out why. That sequence, repeated across thousands of questions, is what builds the fast, durable recall the real exam rewards. Passive watching skips the "attempt first" step entirely, which is exactly why it plateaus.

Obvious disclosure: we built DATPractice, so weigh that as you read the case we're about to make for structured, timed practice over passive video. Here's our honest reasoning anyway.

How to Actually Use These Channels in Your Study Plan

YouTube still earns a place in a good DAT schedule — just a small, specific one.

• Use video for triage, not hours. When you miss a question and genuinely don't understand the concept, watch one short, targeted video on that exact subtopic. Don't queue up a whole playlist "just in case."
• Follow every video with practice, immediately. Watch the concept, then do timed questions on it the same sitting. If you can't solve a fresh problem without the video paused next to you, you haven't learned it yet.
• Cap your watch time weekly. If your log shows more hours watched than questions attempted, your ratio is backwards. Most hours should go to practice tests and reviewing your own misses.
• Skip video entirely for PAT drilling. Learn each subsection's rules once, then switch to a generator or full-length test for the actual reps.
• Track what's actually moving your score. If your averages stall despite hours of watching, shift time from video to active review of your own missed questions, which is where real gains come from — a pattern we cover from the student side in real DAT score breakdowns and study timelines.

None of this makes YouTube a waste of time. It means treating it as a spark for review, not the engine of your prep. The engine has to be timed, full-length practice with real feedback on why each answer is right or wrong.