CrashCourse
Full review English
ScienceStoriesNature & EarthCurrent AffairsGeology
ScreenMyYouTuber — analysis performed by AI, published by us.
At a glance for parents
Read this before showing it. This is an AI assessment of the sample, not a safety guarantee.
- Age guidance
- Older. Read the age guidance and reasoning before choosing for your child.
- Concerns found
- Mature themes (High), Commercial pressure (Low), Adult activities (High).
- Sample size
- 10 videos reviewed for age suitability and risk areas; 100 of 100 collected videos screened for harmful or misleading content. See coverage.
- Review date
- · Full review. Channels can change after a review.
- What could not be checked
- Spoken content was available for 0 of 10 reviewed videos. The model reads text and still images; it does not watch video or listen to audio. Read this review’s limitations.
How to check a channel before your child watches · Understanding Elsagate screening
Channel analysis summary
This sample consists of a series of comprehensive educational videos from the 'Sex Ed' course by Crash Course. The content focuses on sexual health, anatomy, consent, and social constructs surrounding sexuality, utilizing a clinical yet accessible approach to provide factual information and debunk common myths.
What this channel covers
Covers Geography, Science, Art and drawing, Health and the body, Coding, History, Maths, Space, and Feelings and social skills — mostly by saying how and why things work, or giving practice, rather than only saying what they are.
In the sample we reviewed closely, some topics were explained or practised, not only named. We have not heard the videos to confirm how far that goes.
-
geologic time and earth formation
explains
How old is the Earth?: Crash Course Geology #17 +2
-
organic chemistry
explains
Medicinal Chemistry and Penicillin Total Synthesis: Crash Course Organic Chemistry #50 +5
- Medicinal Chemistry and Penicillin Total Synthesis: Crash Course Organic Chemistry #50 (on YouTube, new tab)
- Biochemical Building Blocks & Fischer and Haworth Projections: Crash Course Organic Chemistry #48 (on YouTube, new tab)
- Diazonium Salts & Nucleophilic Aromatic Substitution: Crash Course Organic Chemistry #47 (on YouTube, new tab)
- Amines: Crash Course Organic Chemistry #46 (on YouTube, new tab)
- The Aldol and Claisen Reactions: Crash Course Organic Chemistry #44 (on YouTube, new tab)
- Synthesis, Distillation, & Recrystallization: Crash Course Organic Chemistry #40 (on YouTube, new tab)
- the rock cycle explains The Rock Episode: Crash Course Geology #6 (on YouTube, new tab)
-
art history and analysis
explains
Should Art Be Political? +7
- Should Art Be Political? (on YouTube, new tab)
- Does Defacing Art = Activism? (on YouTube, new tab)
- What's the Difference Between Art & Design? (on YouTube, new tab)
- Origins of Color (Trade & Exchange): Crash Course Art History #12 (on YouTube, new tab)
- Bodies in Art: Crash Course Art History #11 (on YouTube, new tab)
- How Do Religions Use Art?: Crash Course Art History #8 (on YouTube, new tab)
- The History of Museums: Crash Course Art History #3 (on YouTube, new tab)
- How to Look at Art: Crash Course Art History #2 (on YouTube, new tab)
-
Latin American literature
explains
Family, Power, and Legacy: Crash Course Latin American Literature #9 +3
- Family, Power, and Legacy: Crash Course Latin American Literature #9 (on YouTube, new tab)
- Nature in Latin American Literature: Crash Course Latin American Literature #3 (on YouTube, new tab)
- Magical Realism & The Latin American Boom: Crash Course Latin American Literature #2 (on YouTube, new tab)
- Introduction to Latin American Literature: Crash Course Latin American Literature #1 (on YouTube, new tab)
- AI alignment problem explains The Alignment Problem Explained: Crash Course Futures of AI #4 (on YouTube, new tab)
-
history and societal impact of AI
explains
How is AI impacting society?: Crash Course Futures of AI #2 +1
-
Black American history
explains
Black Lives Matter: Crash Course Black American History #51 +9
- Black Lives Matter: Crash Course Black American History #51 (on YouTube, new tab)
- Barack Obama: Crash Course Black American History #50 (on YouTube, new tab)
- Hurricane Katrina: Crash Course Black American History #49 (on YouTube, new tab)
- Anita Hill and Clarence Thomas: Crash Course Black American History #46 (on YouTube, new tab)
- Malcolm X and the Rise of Black Power: Crash Course Black American History #38 (on YouTube, new tab)
- Martin Luther King, Jr: Crash Course Black American History #36 (on YouTube, new tab)
- Emmett Till: Crash Course Black American History #34 (on YouTube, new tab)
- School Segregation and Brown v Board: Crash Course Black American History #33 (on YouTube, new tab)
- Randolph, Rustin, & the Origins of the March on Washington: Crash Course Black American History #32 (on YouTube, new tab)
- Arts and Letters of the Harlem Renaissance: Crash Course Black American History #26 (on YouTube, new tab)
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Native American history and sovereignty
explains
What Can a Prophecy Tell Us About Climate Change?: Ep 24 of Crash Course Native American History +7
- What Can a Prophecy Tell Us About Climate Change?: Ep 24 of Crash Course Native American History (on YouTube, new tab)
- Modern Tribal Governments Explained: Ep 20 of Crash Course Native American History (on YouTube, new tab)
- The Native Civil Rights Movement: Ep 15 of Crash Course Native American History (on YouTube, new tab)
- The Indian Reorganization Act Explained: Ep 13 of Crash Course Native American History (on YouTube, new tab)
- From the Trail of Tears to Wounded Knee: Ep 11 of Crash Course Native American History (on YouTube, new tab)
- What are the Fish Wars and Why Do They Matter?: Ep 9 of Crash Course Native American History (on YouTube, new tab)
- Introduction to Indigenous Knowledge : Ep 8 of Crash Course Native American History (on YouTube, new tab)
- What Do Native Cultures Have in Common?: Ep 6 of Crash Course Native American History (on YouTube, new tab)
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political theory and governance
explains
Philosophies of Punishment & The Prison Abolition Movement +4
- Philosophies of Punishment & The Prison Abolition Movement (on YouTube, new tab)
- Political Cosmopolitanism (on YouTube, new tab)
- A World Without Governments? Anarchism Explained (on YouTube, new tab)
- What does Machiavellian mean? (on YouTube, new tab)
- What Are the Rules of War? Just War Theory (on YouTube, new tab)
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industrial and medical geography
explains
How did Detroit Become the Motor City? | Industrial Geography | Crash Course Geography #48 +3
- How did Detroit Become the Motor City? | Industrial Geography | Crash Course Geography #48 (on YouTube, new tab)
- Mineral Extraction: Crash Course Geography #44 (on YouTube, new tab)
- Why is There Uneven Access to Food? Crash Course Geography #42 (on YouTube, new tab)
- How Does Disease Move? Crash Course Geography #34 (on YouTube, new tab)
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human sexuality and sexual health
explains
What is kink?: Sex Ed #15 +14
- What is kink?: Sex Ed #15 (on YouTube, new tab)
- Unpacking masturbation: Sex Ed #14 (on YouTube, new tab)
- What to know about orgasms: Sex Ed #13 (on YouTube, new tab)
- Let's talk about porn literacy: Sex Ed #12 (on YouTube, new tab)
- What is consent?: Sex Ed #11 (on YouTube, new tab)
- Understanding Abortion: Sex Ed #10 (on YouTube, new tab)
- Pregnancy & Childbirth: Sex Ed #9 (on YouTube, new tab)
- Birth Control Explained: Sex Ed #8 (on YouTube, new tab)
- Getting real about STIs: Sex Ed #7 (on YouTube, new tab)
- Is virginity real?: Sex Ed #6 (on YouTube, new tab)
- Unpacking Sexual Orientation: Sex Ed #5 (on YouTube, new tab)
- What is gender identity?: Sex Ed #4 (on YouTube, new tab)
- The Penis Explained: Sex Ed #3 (on YouTube, new tab)
- The Vulva & Vagina Explained: Sex Ed #2 (on YouTube, new tab)
- What is sex?: Sex Ed #1 (on YouTube, new tab)
- statistical thinking in science explains Statistical Thinking in Science: Crash Course Scientific Thinking #2 (on YouTube, new tab)
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cosmology and the fate of the universe
explains
How It All Ends | Crash Course Pods: The Universe #11 +5
- How It All Ends | Crash Course Pods: The Universe #11 (on YouTube, new tab)
- The Future | Crash Course Pods: The Universe #10 (on YouTube, new tab)
- The Cosmos and Us | Crash Course Pods: The Universe #9 (on YouTube, new tab)
- What’s Keeping the Stars Apart | Crash Course Pods: The Universe #7 (on YouTube, new tab)
- The Story of Dark Matter | Crash Course Pods: The Universe #6 (on YouTube, new tab)
- The Dark Ages of the Cosmos | Crash Course Pods: The Universe #3 (on YouTube, new tab)
What YouTube reports
YouTube's own figures for this channel, as collected when we looked. Nothing here is a finding of ours.
- Channel created
- 17,200,000
- Subscribers
- 1,717
- Videos published
- 2,305,951,877
- Total views
- English
- Audio language the uploader declared
- Not marked as made for children
- Audience the uploader declared
A made-for-children marking is the uploader's own answer to a question about advertising and data collection — not a judgement by anyone that the content suits a child, and nobody checks it against the videos.
What the recent uploads show
Counted from the 100 most recent 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
- 1
- Published in the last 90 days
- 11/94
- Run 180 seconds or less
- 10:37
- Typical length
Uploads marked made for children 0 of the 94 uploads that carry the label.
About the channel
What kind of channel this is. These describe it rather than warn about it, so they carry no severity colour.
- Consistency High The series maintains a consistent format, branding, and educational tone across all sampled videos.
- Synthetic media None found No evidence of machine-generated narration or imagery; content appears to be produced by a professional team.
Does well Cites reputable medical and research sources like the Kinsey Institute and Planned Parenthood Uses inclusive and non-judgmental language to discuss sensitive health topics Provides structured learning paths with clear chapter timestamps
Where the presentation and the content differ
- In 3 of the 100 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 — the pattern commonly called Elsagate — 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.
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What is kink?: Sex Ed #15 presentation mismatchMismatch: Adult sexual content (kinks, fetishes, BDSM) appearing on a channel that promotes 'CC Kids' in the description.
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Unpacking masturbation: Sex Ed #14 presentation mismatchMismatch: Adult sexual content (masturbation) appearing on a channel that promotes 'CC Kids' in the description.
-
What to know about orgasms: Sex Ed #13 presentation mismatchMismatch: Adult sexual content (orgasms) appearing on a channel that promotes 'CC Kids' in the description.
Age guidance
older
The content covers explicit mature topics including masturbation, orgasms, pornography, and BDSM. While presented educationally, these subjects are intended for adolescents and adults.
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.
-
Mature themes
HighSexual, romantic, or otherwise adult subject matter.
The entire sample is dedicated to sexual education, covering topics such as BDSM, pornography, and abortion.
kink, masturbation, orgasms, porn, abortion, STIs
-
Adult activities
HighAlcohol, drugs, tobacco, gambling, and driving.
The content explicitly discusses and explains various adult sexual activities.
masturbation, BDSM, sexual intercourse
-
Commercial pressure
LowSelling, undisclosed promotion, gambling mechanics, and scams.
The channel requests support via Patreon and direct donations to keep content free, which is a standard non-profit/educational model.
Patreon links in descriptions
Nothing found in: language · violence · horror · bullying · external contact · medical body horror · stimulation · impersonation
What this review covers
Harmful or misleading content · every video
- 100
- Videos screened
- 18
- Flagged
- 3
- Of those, presentation mismatches
Age suitability and risk areas · a sample
- 10
- Videos reviewed
- 0
- Spoken content examined
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 all 100 of this channel's videos for harmful content and for videos presenting themselves as something they are not, and flagged 18. 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
-
What is kink?: Sex Ed #15
Presentation mismatch ·
Mismatch: Adult sexual content (kinks, fetishes, BDSM) appearing on a channel that promotes 'CC Kids' in the description.
-
Unpacking masturbation: Sex Ed #14
Presentation mismatch ·
Mismatch: Adult sexual content (masturbation) appearing on a channel that promotes 'CC Kids' in the description.
-
What to know about orgasms: Sex Ed #13
Presentation mismatch ·
Mismatch: Adult sexual content (orgasms) appearing on a channel that promotes 'CC Kids' in the description.
-
Let's talk about porn literacy: Sex Ed #12
Flagged ·
Adult content (pornography literacy) is inappropriate for a curated kids' app.
-
What is consent?: Sex Ed #11
Flagged ·
Sexual consent education is not appropriate for a general kids' app.
-
Understanding Abortion: Sex Ed #10
Flagged ·
Medical/social content regarding abortion is inappropriate for a curated kids' app.
-
Pregnancy & Childbirth: Sex Ed #9
Flagged ·
Detailed content on pregnancy and childbirth is inappropriate for a general kids' app.
-
Birth Control Explained: Sex Ed #8
Flagged ·
Birth control and contraception education is inappropriate for a curated kids' app.
-
Getting real about STIs: Sex Ed #7
Flagged ·
STI and HIV education is inappropriate for a curated kids' app.
-
Is virginity real?: Sex Ed #6
Flagged ·
Content regarding virginity and sexual scripts is inappropriate for a curated kids' app.
Flagged in screening, outside the sample
Screening flagged these and the sample did not reach them, so no finding above rests on them. They are shown because a flag is worth seeing whether or not the sample happened to include it.
-
Unpacking Sexual Orientation: Sex Ed #5
Flagged ·
Adult content: sexual orientation and sex education is not appropriate for a curated kids' app.
-
What is gender identity?: Sex Ed #4
Flagged ·
Adult content: gender identity and healthcare transition topics are not appropriate for a curated kids' app.
-
The Penis Explained: Sex Ed #3
Flagged ·
Adult content: detailed anatomy of male reproductive organs is not appropriate for a curated kids' app.
-
The Vulva & Vagina Explained: Sex Ed #2
Flagged ·
Adult content: detailed anatomy of female reproductive organs is not appropriate for a curated kids' app.
-
What is sex?: Sex Ed #1
Flagged ·
Adult content: discussion of sexual acts is not appropriate for a curated kids' app.
-
Crash Course Sex Ed Preview
Flagged ·
Adult content: general sex education series is not appropriate for a curated kids' app.
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What Do Sex and Gender Have to Do with Religion?: Crash Course Religions #20
Flagged ·
Content discusses adult themes of sex and gender which are inappropriate for a curated kids' app.
-
Philosophies of Punishment & The Prison Abolition Movement
Flagged ·
Content discusses incarceration and prison abolition, which is too mature for a curated kids' app.
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.