Fire
The fire radical and the fire kanji are the same as each other.
If you know the radicals then this one is EZPZ.
か
ひ, ほ
None
Whenever we need to remember か, we use the word car. For this kanji, when we think fire, we ought to think of something on fire. What's on fire? It's obviously your very own car (か)! Oh Goddd NOOO!
Oh no... Oh no!! If you don't have a car, imagine what it'd feel like if your car just exploded and burned down. If you do have a car, imagine your own car in this situation. It should be a terrible feeling, if you imagine it well enough. So, when you think fire, remember the fear you had when your car was given to the flames. Now you have to walk everywhere, sad :(