Related Clues:

• Earth, water, air and fire
• Constituents, ingredients
• Constituent ingredients
• Atmospheric forces like wind and rain
• If you want to weather them, see 13 across
• Do they come together chemically to make up the weather?
• Glowers of chemistry
• Bits of chemistry in the weather
• The chemistry of the weather?
• The basic parts of the weather
• Bright weather
• Do they make light of it for the chemist?
• In current use for the chemist
• The weather is all a matter of chemistry
• One might make light of them in chemistry