Have you ever wondered why paint changes colour when you mix it? Well I'm going to test this on Textas
Step 1: Equipment
-Textas (primary colours: red, yellow, blue)
Step 2: Yellow + Red
Start by putting some red on your sheet of paper
Then put yellow over the top
Hmmm... I can faintly see the orange but it is there.
Step 3: Yellow + Blue
Start by putting yellow on the paper
Then put blue on top
I can easily see the green!
Step 4: Blue + Red
Now, put blue on the page first.
Finally, put the red on.
I can't see any purple whatsoever
RESULT: EPIC FAIL
Step 5: The End
So that proves it, basically only paint mixes colours!