🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 189 (from laksa008)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa189.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.science-sparks.com/what-is-brownian-motion/\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.science-sparks.com/what-is-brownian-motion/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.science-sparks.com\/what-is-brownian-motion\/","crawl_time":1775281569,"first_indexed_time":1687782807,"http_code":200,"src_unparsed":"com,science-sparks!www,\/what-is-brownian-motion\/ s443","src_root_hash":"14306521247751424189","history_drop_reason":null,"meta_title":"What is Brownian Motion?","meta_descriptions":["Brownian Motion is the random movement of particles suspended in a liquid or gas. The movement is caused by particles colliding with each other. Brownian"],"attrs_boilerpipe_text":"Brownian Motion\nis the random movement of particles suspended in a liquid or gas. The movement is caused by particles colliding with each other.\nBrownian Motion is named after a botanist,\nRobert Brown\n, who noticed pollen grains moving around randomly in water under a microscope. Even though pollen grains are much larger than water molecules, there were still enough collisions for them to be moved.\nRobert Brown didn't understand why the pollen grains he observed were moving, but he was the first scientist to document this kind of movement. It was Albert Einstein who explained that water molecules were moving the pollen grains, and Brownian Motion was used as evidence for the kinetic theory of matter.\nThis video explains Brownian Motion brilliantly!\nWhat's the difference between Brownian Motion and Diffusion?\nDiffusion is the movement of particles from a high to a low concentration. The particles have a direction of travel. In Brownian Motion, the movement of particles is random.\nDiffusion occurs when there is a concentration gradient. Brownian Motion occurs due to the movement of other particles in the liquid or gas.\nScience concepts\nDiffusion\nBrownian Motion\nLast Updated on June 26, 2023 by\nEmma Vanstone","attrs_markdown":"[Science Experiments for Kids](https:\/\/www.science-sparks.com\/)\n\n[![go to homepage](https:\/\/www.science-sparks.com\/science-for-kids-science-sparks-mobile\/)](https:\/\/www.science-sparks.com\/)\n\n- [FREE Science Printables](https:\/\/www.science-sparks.com\/science-resources-for-home-and-school\/)\n- [Science for Kids](https:\/\/www.science-sparks.com\/science-experiments-for-kids\/)\n  - [Biology](https:\/\/www.science-sparks.com\/category\/science-experiments-for-kids\/biology-for-kids\/)\n  - [Chemistry](https:\/\/www.science-sparks.com\/category\/science-experiments-for-kids\/chemistry\/)\n  - [Physics](https:\/\/www.science-sparks.com\/category\/science-experiments-for-kids\/physics-for-kids\/)\n    - [Forces and Motion](https:\/\/www.science-sparks.com\/category\/science-experiments-for-kids\/forces-and-motion\/)\n  - [Kitchen Science](https:\/\/www.science-sparks.com\/category\/kitchen-science\/)\n  - [Climate Change](https:\/\/www.science-sparks.com\/category\/climate-change-for-kids\/)\n  - [Egg Experiments](https:\/\/www.science-sparks.com\/category\/egg-experiments-2\/)\n  - [Fairy Tale Science](https:\/\/www.science-sparks.com\/category\/fairy-tale-science-experiments\/)\n  - [Inspirational Women in Science](https:\/\/www.science-sparks.com\/category\/inspirational-women-in-science\/)\n- [STEM Challenges](https:\/\/www.science-sparks.com\/free-stem-challenge-templates-for-kids\/)\n- [Science Fair Projects](https:\/\/www.science-sparks.com\/category\/science-fair-projects\/)\n- [Seasonal Science](https:\/\/www.science-sparks.com\/category\/holiday-science\/)\n  - [Christmas Science](https:\/\/www.science-sparks.com\/category\/holiday-science\/christmas-science-experiments\/)\n  - [Easter Science](https:\/\/www.science-sparks.com\/category\/holiday-science\/easter-science\/)\n  - [Halloween Science](https:\/\/www.science-sparks.com\/category\/holiday-science\/halloween-science-2\/)\n  - [Spring Science Experiments](https:\/\/www.science-sparks.com\/category\/seasonal-science\/spring-science-experiments\/)\n  - [Summer Science Experiments](https:\/\/www.science-sparks.com\/category\/seasonal-science\/summer-science-experiments\/)\n  - [Autumn Science Experiments](https:\/\/www.science-sparks.com\/category\/seasonal-science\/autumn-science-experiments\/)\n  - [Winter Science Experiments](https:\/\/www.science-sparks.com\/category\/seasonal-science\/winter-science-experiments\/)\n- [Science Sparks Books](https:\/\/www.science-sparks.com\/science-books-for-kids-science-sparks\/)\n\n[![Homepage link](https:\/\/www.science-sparks.com\/science-for-kids-science-sparks-mobile\/)](https:\/\/www.science-sparks.com\/)\n\n- [FREE Science Printables](https:\/\/www.science-sparks.com\/science-resources-for-home-and-school\/)\n- [Science for Kids](https:\/\/www.science-sparks.com\/science-experiments-for-kids\/)\n  - [Biology](https:\/\/www.science-sparks.com\/category\/science-experiments-for-kids\/biology-for-kids\/)\n  - [Chemistry](https:\/\/www.science-sparks.com\/category\/science-experiments-for-kids\/chemistry\/)\n  - [Physics](https:\/\/www.science-sparks.com\/category\/science-experiments-for-kids\/physics-for-kids\/)\n    - [Forces and Motion](https:\/\/www.science-sparks.com\/category\/science-experiments-for-kids\/forces-and-motion\/)\n  - [Kitchen Science](https:\/\/www.science-sparks.com\/category\/kitchen-science\/)\n  - [Climate Change](https:\/\/www.science-sparks.com\/category\/climate-change-for-kids\/)\n  - [Egg Experiments](https:\/\/www.science-sparks.com\/category\/egg-experiments-2\/)\n  - [Fairy Tale Science](https:\/\/www.science-sparks.com\/category\/fairy-tale-science-experiments\/)\n  - [Inspirational Women in Science](https:\/\/www.science-sparks.com\/category\/inspirational-women-in-science\/)\n- [STEM Challenges](https:\/\/www.science-sparks.com\/free-stem-challenge-templates-for-kids\/)\n- [Science Fair Projects](https:\/\/www.science-sparks.com\/category\/science-fair-projects\/)\n- [Seasonal Science](https:\/\/www.science-sparks.com\/category\/holiday-science\/)\n  - [Christmas Science](https:\/\/www.science-sparks.com\/category\/holiday-science\/christmas-science-experiments\/)\n  - [Easter Science](https:\/\/www.science-sparks.com\/category\/holiday-science\/easter-science\/)\n  - [Halloween Science](https:\/\/www.science-sparks.com\/category\/holiday-science\/halloween-science-2\/)\n  - [Spring Science Experiments](https:\/\/www.science-sparks.com\/category\/seasonal-science\/spring-science-experiments\/)\n  - [Summer Science Experiments](https:\/\/www.science-sparks.com\/category\/seasonal-science\/summer-science-experiments\/)\n  - [Autumn Science Experiments](https:\/\/www.science-sparks.com\/category\/seasonal-science\/autumn-science-experiments\/)\n  - [Winter Science Experiments](https:\/\/www.science-sparks.com\/category\/seasonal-science\/winter-science-experiments\/)\n- [Science Sparks Books](https:\/\/www.science-sparks.com\/science-books-for-kids-science-sparks\/)\n\n[×](https:\/\/www.science-sparks.com\/what-is-brownian-motion\/)\n\n[Home](https:\/\/www.science-sparks.com\/) » [Science Experiments for Kids](https:\/\/www.science-sparks.com\/category\/science-experiments-for-kids\/) » What is Brownian Motion?\n\n# What is Brownian Motion?\nPublished: Jun 26, 2023 by [Emma Vanstone](https:\/\/www.science-sparks.com\/emma-vanstone\/) · This post may contain affiliate links · [Leave a Comment](https:\/\/www.science-sparks.com\/what-is-brownian-motion\/#respond)\n\n**Brownian Motion** is the random movement of particles suspended in a liquid or gas. The movement is caused by particles colliding with each other.\n\nBrownian Motion is named after a botanist, **[Robert Brown](https:\/\/www.britannica.com\/biography\/Robert-Brown-Scottish-botanist)**, who noticed pollen grains moving around randomly in water under a microscope. Even though pollen grains are much larger than water molecules, there were still enough collisions for them to be moved.\n\nRobert Brown didn't understand why the pollen grains he observed were moving, but he was the first scientist to document this kind of movement. It was Albert Einstein who explained that water molecules were moving the pollen grains, and Brownian Motion was used as evidence for the kinetic theory of matter.\n\nThis video explains Brownian Motion brilliantly\\!\n\n### What's the difference between Brownian Motion and Diffusion?\n- Diffusion is the movement of particles from a high to a low concentration. The particles have a direction of travel. In Brownian Motion, the movement of particles is random.\n\n- Diffusion occurs when there is a concentration gradient. Brownian Motion occurs due to the movement of other particles in the liquid or gas.\n## Science concepts\n**[Diffusion](https:\/\/www.science-sparks.com\/diffusion-demonstration\/)**\n\nBrownian Motion\n\n![particles colliding due to Brownian Motion](https:\/\/www.science-sparks.com\/wp-content\/uploads\/2023\/06\/What-is-the-Brownian-Motion-683x1024.jpg)\n\nLast Updated on June 26, 2023 by [Emma Vanstone](https:\/\/www.science-sparks.com\/emma-vanstone\/)\n\n## More Science Experiments for Kids\n- [![](https:\/\/www.science-sparks.com\/wp-content\/uploads\/2021\/03\/Easter-Projects-to-do-with-Kids-Pin.jpg)Easy Easter STEM Projects to do with Kids](https:\/\/www.science-sparks.com\/easy-easter-stem-projects-to-do-with-kids\/)\n- [![Parachute and egg experiment for kids](https:\/\/www.science-sparks.com\/wp-content\/uploads\/2011\/09\/DSC_1589-2-360x540.jpg)Parachute Egg Drop Experiment - Gravity and Air Resistance](https:\/\/www.science-sparks.com\/gravity-and-air-resistance\/)\n- [![](https:\/\/www.science-sparks.com\/wp-content\/uploads\/2026\/03\/Feel-like-a-genius-maths-tricks-360x540.jpg) Amazing Maths Tricks](https:\/\/www.science-sparks.com\/amazing-maths-tricks\/)\n- [![World Book Day Fortune Teller Teamplate](https:\/\/www.science-sparks.com\/wp-content\/uploads\/2026\/03\/World-Book-Day-Fortune-Teller-Template-360x540.jpg) World Book Day Fortune Teller](https:\/\/www.science-sparks.com\/world-book-day-fortune-teller\/)\n### Leave a Reply [Cancel reply](https:\/\/www.science-sparks.com\/what-is-brownian-motion\/#respond)\n\n### Welcome\\!\nImagine a world where science education is accessible to everyone and is all about hands-on, exciting discoveries. That’s the world I want to create.\n\n[More about me](https:\/\/www.science-sparks.com\/emma-vanstone\/)\n\n### Around the World in 50 Experiments\n[![50 experiments about countries of the world](https:\/\/www.science-sparks.com\/wp-content\/uploads\/2021\/04\/Around-the-World-in-50-Experiments-FB-1024x1024.jpg)](https:\/\/www.science-sparks.com\/category\/around-the-world-in-50-experiments\/)\n\n## Footer\n[↑ back to top](https:\/\/www.science-sparks.com\/what-is-brownian-motion\/)\n\n![Science Sparks - FREE science experiments for kids](https:\/\/www.science-sparks.com\/wp-content\/uploads\/2019\/06\/avatar-300x300.jpg)\n\n**Newsletter**\n\n- [**Sign Up**\\!](https:\/\/dashboard.mailerlite.com\/forms\/635973\/101582805567276814\/share) for emails and updates\n\n**Contact**\n\n- [Contact](https:\/\/www.science-sparks.com\/about-science-sparks\/)\n- [Privacy Policy](https:\/\/www.science-sparks.com\/privacy-policy-and-data-protection\/)\n- Services\n- Media Kit\n- FAQ\n\nAs an Amazon Associate, I earn from qualifying purchases.\n\nCopyright © 2025 Science Sparks - Wild Sparks Enterprises Ltd","attrs_readable_markdown":"**Brownian Motion** is the random movement of particles suspended in a liquid or gas. The movement is caused by particles colliding with each other.\n\nBrownian Motion is named after a botanist, **[Robert Brown](https:\/\/www.britannica.com\/biography\/Robert-Brown-Scottish-botanist)**, who noticed pollen grains moving around randomly in water under a microscope. Even though pollen grains are much larger than water molecules, there were still enough collisions for them to be moved.\n\nRobert Brown didn't understand why the pollen grains he observed were moving, but he was the first scientist to document this kind of movement. It was Albert Einstein who explained that water molecules were moving the pollen grains, and Brownian Motion was used as evidence for the kinetic theory of matter.\n\nThis video explains Brownian Motion brilliantly\\!\n\n### What's the difference between Brownian Motion and Diffusion?\n- Diffusion is the movement of particles from a high to a low concentration. The particles have a direction of travel. In Brownian Motion, the movement of particles is random.\n\n- Diffusion occurs when there is a concentration gradient. Brownian Motion occurs due to the movement of other particles in the liquid or gas.\n## Science concepts\n**[Diffusion](https:\/\/www.science-sparks.com\/diffusion-demonstration\/)**\n\nBrownian Motion\n\n![particles colliding due to Brownian Motion](https:\/\/www.science-sparks.com\/wp-content\/uploads\/2023\/06\/What-is-the-Brownian-Motion-683x1024.jpg)\n\nLast Updated on June 26, 2023 by [Emma Vanstone](https:\/\/www.science-sparks.com\/emma-vanstone\/)","meta_canonical":null}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📄

INDEXABLE

✅

CRAWLED

4 days ago

🤖

ROBOTS ALLOWED

Page Info Filters

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	0.2 months ago
History drop	PASS	`isNull(history_drop_reason)`	No drop reason
Spam/ban	PASS	`fh_dont_index != 1 AND ml_spam_score = 0`	ml_spam_score=0
Canonical	PASS	`meta_canonical IS NULL OR = '' OR = src_unparsed`	Not set

Page Details

Property	Value
URL	https://www.science-sparks.com/what-is-brownian-motion/
Last Crawled	2026-04-04 05:46:09 (4 days ago)
First Indexed	2023-06-26 12:33:27 (2 years ago)
HTTP Status Code	200
Meta Title	What is Brownian Motion?
Meta Description	Brownian Motion is the random movement of particles suspended in a liquid or gas. The movement is caused by particles colliding with each other. Brownian
Meta Canonical	null
Boilerpipe Text	Brownian Motion is the random movement of particles suspended in a liquid or gas. The movement is caused by particles colliding with each other. Brownian Motion is named after a botanist, Robert Brown , who noticed pollen grains moving around randomly in water under a microscope. Even though pollen grains are much larger than water molecules, there were still enough collisions for them to be moved. Robert Brown didn't understand why the pollen grains he observed were moving, but he was the first scientist to document this kind of movement. It was Albert Einstein who explained that water molecules were moving the pollen grains, and Brownian Motion was used as evidence for the kinetic theory of matter. This video explains Brownian Motion brilliantly! What's the difference between Brownian Motion and Diffusion? Diffusion is the movement of particles from a high to a low concentration. The particles have a direction of travel. In Brownian Motion, the movement of particles is random. Diffusion occurs when there is a concentration gradient. Brownian Motion occurs due to the movement of other particles in the liquid or gas. Science concepts Diffusion Brownian Motion Last Updated on June 26, 2023 by Emma Vanstone
Markdown	[Science Experiments for Kids](https://www.science-sparks.com/) [![go to homepage](https://www.science-sparks.com/science-for-kids-science-sparks-mobile/)](https://www.science-sparks.com/) - [FREE Science Printables](https://www.science-sparks.com/science-resources-for-home-and-school/) - [Science for Kids](https://www.science-sparks.com/science-experiments-for-kids/) - [Biology](https://www.science-sparks.com/category/science-experiments-for-kids/biology-for-kids/) - [Chemistry](https://www.science-sparks.com/category/science-experiments-for-kids/chemistry/) - [Physics](https://www.science-sparks.com/category/science-experiments-for-kids/physics-for-kids/) - [Forces and Motion](https://www.science-sparks.com/category/science-experiments-for-kids/forces-and-motion/) - [Kitchen Science](https://www.science-sparks.com/category/kitchen-science/) - [Climate Change](https://www.science-sparks.com/category/climate-change-for-kids/) - [Egg Experiments](https://www.science-sparks.com/category/egg-experiments-2/) - [Fairy Tale Science](https://www.science-sparks.com/category/fairy-tale-science-experiments/) - [Inspirational Women in Science](https://www.science-sparks.com/category/inspirational-women-in-science/) - [STEM Challenges](https://www.science-sparks.com/free-stem-challenge-templates-for-kids/) - [Science Fair Projects](https://www.science-sparks.com/category/science-fair-projects/) - [Seasonal Science](https://www.science-sparks.com/category/holiday-science/) - [Christmas Science](https://www.science-sparks.com/category/holiday-science/christmas-science-experiments/) - [Easter Science](https://www.science-sparks.com/category/holiday-science/easter-science/) - [Halloween Science](https://www.science-sparks.com/category/holiday-science/halloween-science-2/) - [Spring Science Experiments](https://www.science-sparks.com/category/seasonal-science/spring-science-experiments/) - [Summer Science Experiments](https://www.science-sparks.com/category/seasonal-science/summer-science-experiments/) - [Autumn Science Experiments](https://www.science-sparks.com/category/seasonal-science/autumn-science-experiments/) - [Winter Science Experiments](https://www.science-sparks.com/category/seasonal-science/winter-science-experiments/) - [Science Sparks Books](https://www.science-sparks.com/science-books-for-kids-science-sparks/) [![Homepage link](https://www.science-sparks.com/science-for-kids-science-sparks-mobile/)](https://www.science-sparks.com/) - [FREE Science Printables](https://www.science-sparks.com/science-resources-for-home-and-school/) - [Science for Kids](https://www.science-sparks.com/science-experiments-for-kids/) - [Biology](https://www.science-sparks.com/category/science-experiments-for-kids/biology-for-kids/) - [Chemistry](https://www.science-sparks.com/category/science-experiments-for-kids/chemistry/) - [Physics](https://www.science-sparks.com/category/science-experiments-for-kids/physics-for-kids/) - [Forces and Motion](https://www.science-sparks.com/category/science-experiments-for-kids/forces-and-motion/) - [Kitchen Science](https://www.science-sparks.com/category/kitchen-science/) - [Climate Change](https://www.science-sparks.com/category/climate-change-for-kids/) - [Egg Experiments](https://www.science-sparks.com/category/egg-experiments-2/) - [Fairy Tale Science](https://www.science-sparks.com/category/fairy-tale-science-experiments/) - [Inspirational Women in Science](https://www.science-sparks.com/category/inspirational-women-in-science/) - [STEM Challenges](https://www.science-sparks.com/free-stem-challenge-templates-for-kids/) - [Science Fair Projects](https://www.science-sparks.com/category/science-fair-projects/) - [Seasonal Science](https://www.science-sparks.com/category/holiday-science/) - [Christmas Science](https://www.science-sparks.com/category/holiday-science/christmas-science-experiments/) - [Easter Science](https://www.science-sparks.com/category/holiday-science/easter-science/) - [Halloween Science](https://www.science-sparks.com/category/holiday-science/halloween-science-2/) - [Spring Science Experiments](https://www.science-sparks.com/category/seasonal-science/spring-science-experiments/) - [Summer Science Experiments](https://www.science-sparks.com/category/seasonal-science/summer-science-experiments/) - [Autumn Science Experiments](https://www.science-sparks.com/category/seasonal-science/autumn-science-experiments/) - [Winter Science Experiments](https://www.science-sparks.com/category/seasonal-science/winter-science-experiments/) - [Science Sparks Books](https://www.science-sparks.com/science-books-for-kids-science-sparks/) [×](https://www.science-sparks.com/what-is-brownian-motion/) [Home](https://www.science-sparks.com/) » [Science Experiments for Kids](https://www.science-sparks.com/category/science-experiments-for-kids/) » What is Brownian Motion? # What is Brownian Motion? Published: Jun 26, 2023 by [Emma Vanstone](https://www.science-sparks.com/emma-vanstone/) · This post may contain affiliate links · [Leave a Comment](https://www.science-sparks.com/what-is-brownian-motion/#respond) Brownian Motion is the random movement of particles suspended in a liquid or gas. The movement is caused by particles colliding with each other. Brownian Motion is named after a botanist, [Robert Brown](https://www.britannica.com/biography/Robert-Brown-Scottish-botanist), who noticed pollen grains moving around randomly in water under a microscope. Even though pollen grains are much larger than water molecules, there were still enough collisions for them to be moved. Robert Brown didn't understand why the pollen grains he observed were moving, but he was the first scientist to document this kind of movement. It was Albert Einstein who explained that water molecules were moving the pollen grains, and Brownian Motion was used as evidence for the kinetic theory of matter. This video explains Brownian Motion brilliantly\! ### What's the difference between Brownian Motion and Diffusion? - Diffusion is the movement of particles from a high to a low concentration. The particles have a direction of travel. In Brownian Motion, the movement of particles is random. - Diffusion occurs when there is a concentration gradient. Brownian Motion occurs due to the movement of other particles in the liquid or gas. ## Science concepts [Diffusion](https://www.science-sparks.com/diffusion-demonstration/) Brownian Motion ![particles colliding due to Brownian Motion](https://www.science-sparks.com/wp-content/uploads/2023/06/What-is-the-Brownian-Motion-683x1024.jpg) Last Updated on June 26, 2023 by [Emma Vanstone](https://www.science-sparks.com/emma-vanstone/) ## More Science Experiments for Kids - [![](https://www.science-sparks.com/wp-content/uploads/2021/03/Easter-Projects-to-do-with-Kids-Pin.jpg)Easy Easter STEM Projects to do with Kids](https://www.science-sparks.com/easy-easter-stem-projects-to-do-with-kids/) - [![Parachute and egg experiment for kids](https://www.science-sparks.com/wp-content/uploads/2011/09/DSC_1589-2-360x540.jpg)Parachute Egg Drop Experiment - Gravity and Air Resistance](https://www.science-sparks.com/gravity-and-air-resistance/) - [![](https://www.science-sparks.com/wp-content/uploads/2026/03/Feel-like-a-genius-maths-tricks-360x540.jpg) Amazing Maths Tricks](https://www.science-sparks.com/amazing-maths-tricks/) - [![World Book Day Fortune Teller Teamplate](https://www.science-sparks.com/wp-content/uploads/2026/03/World-Book-Day-Fortune-Teller-Template-360x540.jpg) World Book Day Fortune Teller](https://www.science-sparks.com/world-book-day-fortune-teller/) ### Leave a Reply [Cancel reply](https://www.science-sparks.com/what-is-brownian-motion/#respond) ### Welcome\! Imagine a world where science education is accessible to everyone and is all about hands-on, exciting discoveries. That’s the world I want to create. [More about me](https://www.science-sparks.com/emma-vanstone/) ### Around the World in 50 Experiments [![50 experiments about countries of the world](https://www.science-sparks.com/wp-content/uploads/2021/04/Around-the-World-in-50-Experiments-FB-1024x1024.jpg)](https://www.science-sparks.com/category/around-the-world-in-50-experiments/) ## Footer [↑ back to top](https://www.science-sparks.com/what-is-brownian-motion/) ![Science Sparks - FREE science experiments for kids](https://www.science-sparks.com/wp-content/uploads/2019/06/avatar-300x300.jpg) Newsletter - [Sign Up\!](https://dashboard.mailerlite.com/forms/635973/101582805567276814/share) for emails and updates Contact - [Contact](https://www.science-sparks.com/about-science-sparks/) - [Privacy Policy](https://www.science-sparks.com/privacy-policy-and-data-protection/) - Services - Media Kit - FAQ As an Amazon Associate, I earn from qualifying purchases. Copyright © 2025 Science Sparks - Wild Sparks Enterprises Ltd
Readable Markdown	Brownian Motion is the random movement of particles suspended in a liquid or gas. The movement is caused by particles colliding with each other. Brownian Motion is named after a botanist, [Robert Brown](https://www.britannica.com/biography/Robert-Brown-Scottish-botanist), who noticed pollen grains moving around randomly in water under a microscope. Even though pollen grains are much larger than water molecules, there were still enough collisions for them to be moved. Robert Brown didn't understand why the pollen grains he observed were moving, but he was the first scientist to document this kind of movement. It was Albert Einstein who explained that water molecules were moving the pollen grains, and Brownian Motion was used as evidence for the kinetic theory of matter. This video explains Brownian Motion brilliantly\! ### What's the difference between Brownian Motion and Diffusion? - Diffusion is the movement of particles from a high to a low concentration. The particles have a direction of travel. In Brownian Motion, the movement of particles is random. - Diffusion occurs when there is a concentration gradient. Brownian Motion occurs due to the movement of other particles in the liquid or gas. ## Science concepts [Diffusion](https://www.science-sparks.com/diffusion-demonstration/) Brownian Motion ![particles colliding due to Brownian Motion](https://www.science-sparks.com/wp-content/uploads/2023/06/What-is-the-Brownian-Motion-683x1024.jpg) Last Updated on June 26, 2023 by [Emma Vanstone](https://www.science-sparks.com/emma-vanstone/)
Shard	189 (laksa)
Root Hash	14306521247751424189
Unparsed URL	com,science-sparks!www,/what-is-brownian-motion/ s443