Fact of the Week
Learn a different fact every week!


What's the most poisonous plant in the world?
Fact of the week
14 October 2024
What's the most poisonous plant in the world?
The seeds of the castor oil plant contain ricin - a highly toxic substance. Chewing the seeds can be fatal. However, when the seeds are pressed, the resulting oil contains no ricin. The oil is used in medicine and also in cosmetics.

Find out more in:
Big Book of Facts

- Previous Page
- Next Page
Previous Facts of the Week
-
-
-
18 August 2025
Farm animals were the first passengers to fly in a hot air balloon.
Want to know more? -
-
-
28 July 2025
Did you know, some beaches are bright pink - made by pink-shelled sea creatures?
Want to know more? -
-
14 July 2025
Did you know what percentage the sun takes up of all the matter in our solar system?
Want to know more?
More 100 Things To Know books
Find lots more amazing facts in these books!
-
Coming SoonAge: 8+US$14.99
-
Coming SoonAge: 8+US$14.99
-
Coming SoonAge: 8+US$14.99
-
Age: 9+US$14.99
-
Age: 8+US$14.99
-
Award WinnerAge: 8+US$14.99
-
Age: 8+US$14.99
-
Age: 8+US$14.99
-
Age: 8+US$14.99
-
Age: 8+US$14.99
-
Age: 8+US$14.99
-
Award WinnerAge: 8+US$14.99
-
Age: 8+US$14.99
-
Age: 8+US$14.99