Query: earth science workbooks for 6th grade
Spectrum Science 6th Grade Workbook—State Standards for Scientific Literacy Practice, Research Activities With Answer Key for Homeschool or Classroom (176 pgs)
180 Days of Science: Grade 6 - Daily Science Workbook for Classroom and Home, Cool and Fun Interactive Practice, Elementary School Level Activities ... Challenging Concepts (180 Days of Practice)
Steck-Vaughn Core Skills Science: Workbook Grade 6