EasyScience
Black when you get it, red when you use it, grey when you are finished.
Riddle
Black when you get it, red when you use it, grey when you are finished.
Choose an answer
A.Lava
B.Iron
C.Matchstick
D.Charcoal
Hint: It's a word with 8 letters, starting with "C".
Answer
Charcoal
Why this is the answer
Charcoal is black, glows red when burning, and turns into grey ash when consumed.
This riddle is filed under Science Riddles and rated Easy.