Related Clues:

• Amount of work
• Itsy-bitsy bits
• What's the matter?
• Joule fractions
• They undergo bonding
• Units of work
• Source of mesons
• Small energy units
• Small matter?
• Smashable items
• Small bits of matter
• Minute quantities
• They may be converted into calories
• Minute particles
• There are 10 million in a joule