ScreenMyYouTuber AI analysis of what YouTube channels actually publish

Mark Rober

Partial review English

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ScreenMyYouTuber — analysis performed by AI, published by us.

Open this channel on YouTube (opens in a new tab)

Channel analysis summary

Mark Rober is a former NASA engineer who creates science and engineering-focused content. The channel blends high-production experiments, educational demonstrations on physics and biology, and large-scale builds, often incorporating a sense of curiosity and problem-solving.

What YouTube reports

YouTube's own figures for this channel, as collected when we looked. Nothing here is a finding of ours.

Channel created
80,700,000
Subscribers
265
Videos published
18,237,077,767
Total views

Audience the uploader declared This channel is not marked as made for children. That marking is about advertising and data collection, so its absence says nothing about who the videos are for.

Its 100 most recent uploads

Counted from the uploads we fetched when we looked. Where YouTube does not report a figure for a video, that video is left out of the count rather than assumed — so some totals below are smaller than 100.

Most recent upload
7
Published in the last 90 days
56/98
Run 60 seconds or less
1:00
Typical length

Audio language the uploader declared English

Uploads marked made for children 0 of the 98 uploads that carry the label. That marking is the uploader's own answer to a question about advertising and data collection, and nobody checks it against the videos.

About the channel

What kind of channel this is. These describe it rather than warn about it, so they carry no severity colour.

  • Educational value High Content focuses on engineering, density, biology, and environmental science.
  • Consistency High The channel consistently delivers science and engineering content aligned with the creator's background.
  • Synthetic media None found Content appears to be filmed real-world experiments and demonstrations.

Does well Strong emphasis on STEM education Promotion of charitable causes (clean water) Encourages critical thinking and engineering mindsets

This is a preliminary review. Some of what we wanted to examine was out of reach when this analysis ran, so it rests on less evidence than a full review. What is published below is accurate as far as it goes; the limitations section says what it could not cover.

Where the presentation and the content differ

  • In 1 of the 99 videos we screened, the way the video presents itself — its characters, styling, and title — did not match what it appears to contain. Those videos are listed below with the reason recorded for each.

A video made to look like it is for young children, carrying something they are not expecting, is the thing this research exists to find. These are automated observations from the images and titles, not a judgement about the channel — read them with the videos they point at.

  • How much pee is in a pool? presentation mismatch

    Mismatch: Use of 'pee' and bodily fluid themes in a format targeting children/curiosity, aligning with Elsagate-style gross-out content.

Age guidance

younger

The content is educational, family-friendly, and focuses on STEM. While some topics involve bodily fluids (urine) in a scientific or curiosity-driven context, the presentation is clean and geared toward a general audience, making it suitable for school-aged children.

Age guidance is our reading of the sample, not a rating and not a certification.

What we found

11 of 11 risk areas were assessed, worst first. A finding is an observation with evidence behind it, not an accusation.

  • Commercial pressure

    Moderate From titles and descriptions Confidence 90%

    Selling, undisclosed promotion, gambling mechanics, and scams.

    Frequent promotion of the creator's own business, CrunchLabs, including subscription services and sweepstakes.

    I Built a Roller Coaster In My Lab Mark Rober vs Dude Perfect- Ultimate Robot Battle 2 video(s) cited

  • Stimulation

    Moderate From thumbnail images Confidence 80%

    Pace, loudness, and sensory intensity. High is not unsafe, but it is worth knowing before bedtime viewing.

    Use of high-energy thumbnails with bright colors, large arrows, and expressive faces to attract attention.

    How much pee is in a pool? How To Fool Your Brain! The REAL Truth Behind the DVD Logo 4 video(s) cited

  • Mature themes

    Low From titles and descriptions Confidence 80%

    Sexual, romantic, or otherwise adult subject matter.

    Some videos discuss urine in a scientific or curiosity-based context.

    How much pee is in a pool? Can You Safely Drink Your Own Pee? 2 video(s) cited

Nothing found in: language · violence · horror · bullying · external contact · adult activities · medical body horror · impersonation

Notable and unrepresentative videos

These stood out from the rest of the sample.

  • none

What this review covers

Harmful or misleading content · every video

99
Videos screened
2
Flagged
1
Of those, presentation mismatches

Age suitability and risk areas · a sample

10
Videos reviewed
0
Spoken content examined

1 sampled video(s) had no completed screening. Absence of a finding for those is not evidence that there is nothing to find.

What this review could not see

  • We could not access what is said in 10 of 10 videos we looked at; findings for those rest on titles, descriptions, and thumbnail images.

The model reads text and still images. It does not watch video or listen to audio. Full methodology.

What we looked at

Automated screening checked 99 of this channel's 100 videos for harmful content and for videos presenting themselves as something they are not, and flagged 2. The age band and risk areas above are a separate reading of 10 of those videos. We do not have what is said in any of those, so every finding rests on how a video presents itself rather than on what it contains.

Flag reasons are AI observations, published as produced — read them alongside the video, not instead of it. How screening and sampling work

Stood out from the sample

The rest of the sample

Think this review is wrong?

If you represent this channel and believe our analysis is inaccurate, contact us and we will re-examine it. A review can be withdrawn from publication immediately on request while that happens.

Contact us about this review