3-6 Sequence

Optional Sequence of Units for 3-6



Students in this level will begin with an easy unit on the harvest and a primer on what is living and non-living in biology.  They progress into the ocean units, explore the coral reef, and finish this topic with sharks.  Students then move on to land animals and several units from the K-3 sequence are repeated for emphasis, while introducing new units that cover animals more in depth.  The second half of the sequence deals with the physical sciences such as space, the moon, and natural formations on the earth.  Students at this level complete the sequence with progressively harder topics on human nutrition and health which will prepare them to move forward in their scientific discovery.


Parents should spend about a week on each topic – adding in storybooks, the online resources, and the optional digital PDF worksheets that are included in the K-12 subscription.


  1.     Harvest
  2.     Living Non-living
  3.     Oceans 1-4
  4.     Coral Reef
  5.     Shark Week
  6.     Arctic Circle
  7.     Winter Survival
  8.     Mammals
  9.     Arctic Animals
  10.     Reindeer
  11.     Bears
  12.     Moose
  13.     Serengeti Secrets
  14.     Migrations
  15.     Reptiles
  16.     Dinosaurs
  17.     Birds
  18.     Eagles
  19.     Penguins
  20.     Space 1-4
  21.     Amphibians
  22.     Lunar Phases
  23.     Caves
  24.     Mountains
  25.     Rocks & Minerals
  26.     Glaciers
  27.     Plants
  28.     Hatching
  29.     Food Chains
  30.     Your Five Senses
  31.     Nutrition 101
  32.     Dental Health

Upper Elementary Students might want to try the Solar System series if the Space series is too easy:

  1.     Sun
  2.     Mercury
  3.     Venus
  4.     Earth
  5.     Mars
  6.     Jupiter
  7.     Saturn
  8.     Uranus
  9.     Neptune
  10.     Pluto

The Complete Science of Horses digital download and interactive units are also included with this level.  The first 5 units are suitable for 5th grade and up, while units 6-15 are geared more towards middle school.