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.


View sample pages, book lists, supply lists, and more at Try Before You Buy.

Choose a level: Earth & Space (level one) - Appropriate for 1st through 4th grade Astronomy 2 - Appropriate for 6th through 10th 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?

Astronomy 2

RSO Astronomy (level 2), written by Blair Lee M.S., is a comprehensive astronomy course at the middle school- to high school-level (grades 6 through 10). But unlike many science textbooks, RSO Astronomy 2 is not a dry collection of facts and worksheets but rather an in-depth course that engages young people’s minds at the same time that they are actively participating in the learning of astronomy.

RSO Astronomy 2 has been created specifically for home and small group use. The course assumes no science background for teacher or student, and there’s no need for an expensive laboratory. Astronomy 2 uses natural settings that encourage students to explore the world and the sky around them. The materials needed for labs and activities are commonly found items.

The course is contained in two books (student text and teacher guide). The student text starts each chapter with an entertaining written lesson that is followed by several components intended to reinforce the lesson, address the needs of different learning styles, and engage students in hands-on learning and research. These components include lab sheets, lab reports, problem sets, activities, famous science research assignments, poetry, quizzes, and tests. The teacher guide provides all the help a science novice needs to assist her student including suggested course scheduling, summaries, additional material and explanations, sample reports, learning objectives, answers and suggestions, and test answer keys. Divided into 12 chapters, Astronomy 2 provides a complete semester-long astronomy course that is generally completed in 12 to 16 weeks. Some lab work, such as monitoring the sun and the moon over an extended period of time, is continued after completion of the main course.

To view a sample of RSO Astronomy 2, including supply list, please see Try Before You Buy.

RSO Astronomy 2 Scope and Sequence:Universe and Cosmology
  • Light-year and astronomical unit
  • Electromagnetic radiation and spectrum
  • Tools of astronomy
  • Space exploration
  • Scientific modeling
  • Enormity and size of the universe
  • Big bang model and theory
  • Doppler effect
  • Origin and structure of matter and elements in the universe
  • Black holes
  • Dark matter
  • Properties of light
  • Structure, types, and origin of stars
  • Law of universal gravitation
Our Solar System
  • Timeline of formation
  • Structure
  • Nebular hypothesis
  • Conservation of momentum
  • Heat transfer
  • Life cycle of the sun
  • Structure of the sun
  • Planetary motion models (history of)
  • Kepler’s laws
  • Newton’s laws
  • General theory of relativity
  • Accretion model
  • Properties of the rocky planets
  • Properties of the gaseous planets
  • Planets’ moons
Homeward Bound
  • Shape of the earth
  • Mapping a planet
  • Interpreting topographic maps
  • Formation and structure of early Earth
  • Earth’s rotation, tilt, and revolution
  • Earth-sun-moon system
  • Cause of the seasons
  • Moon formation and structure
  • Tidal effect of the moon
  • Eclipses and moon phases