R.E.A.L. Science Odyssey

Read, Explore, Absorb, and Learn science Earth & Space

With RSO Earth & Space, students observe, speculate, hypothesize, experiment, and conclude through the topics of weather, seasons, the Earth, rocks & minerals, our solar system, and space. Students learn by doing through engaging written lessons that are heavily reinforced by hands-on labs and activities.


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Choose a level: Earth & Space (level one) - Appropriate for 1st through 4th grade Earth & Space - Level One
RSO Earth & Space (level one) is appropriate for 1st to 4th grade. Topics include weather, seasons, the earth, minerals, rocks, our solar system, and space. Students study the weather and atmosphere with several hands-on labs including making an anemometer, a rain gage, and water cycle in a bowl. Rocks and minerals are studied in depth with students identifying their samples through the same tests used by geologists. Each planet in our solar system is studied individually as students make their own planet book. Earth & Space has recently been revised to include changes to the status of Pluto and the definition of planet.
The following is a list of topics your child will learn during the year while completing Earth & Space (level one). Each topic and/or subtopic will include 1 to 3 lessons complete with lesson story, labs, reading, and other activities. Each topic will take anywhere from 1 to 4 weeks to complete. Remember your child will also be having a whole lot of fun. Also included in this scope are laughing, playing, digging, exploring, reading, singing, and begging for more RSO!


What is Earth & Space?

  • Weather and Seasons – monitoring weather, understanding seasons
  • The Water Cycle
  • The Earth’s Interior – crust, mantle, outer core and inner core
  • The Earth’s Surface – water and land
  • Minerals – what they are and how to identify them
  • Rocks and the Rock Cycle – igneous, sedimentary and metamorphic rocks
  • Erosion – wind, water, ice, and biological erosion
  • Soil

The Solar System

  • The Earth/Moon System
  • The Solar System – the sun, planets, and asteroid belts
  • The Planets – Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
  • Pluto is studied as a dwarf planet


  • Stars, Comets, Meteoroids and Asteroids
  • What´s Not in Space?