Sample

• Chemistry


  The study of matter, their composition, properties and the ways in which they interact, combine, and change
• Matter


  Anything that occupies space and has mass
• States of matter


  • Solid
  • Liquid
  • Gas
• Solid


  • Firm and hard
• Liquid


  • Wobbly and loose
• Gas


  • Thickest and cannot be seen
• Atom


  Small particles
• Pure substance


  Matter that has constant composition and structure, and properties that are constant throughout the sample
• Halo, Pizza, Air


  • Not pure substances
• Gas


  More than 99% hydrogen
• Drop of water


  Liquid, 33% hydrogen, H2O
• Hydrogen


  Oxygen
• Endocrine disorders occur when there are abnormalities in hormone production, regulation, or response.