We keep science INBs (Interactive Notebooks) for specific units. We use it for initially teaching the topic, writing vocabulary, and taking notes. They reference their INB for open notes tests as well as learn to be organized and look for what they can't remember instead of asking the teacher again. 
1st 9 Weeks Units
  • Density
  • Food Chains
2nd 9 Weeks Units
  • Cells and Bacteria
  • States of Matter
3rd 9 Weeks Units
  • Laws of Physics
  • Electricity
4th 9 Weeks Units
  • Heredity
  • Life Cycles