Rebecca W. Keller

• Real science Kogs-4-kids
• Real Science-4-Kids, Biology Level 1, Student Text
• Astronomy, Level I
• Real Science-4-Kids Chemistry Level 1 Student Text
• Real Science-4-Kids Chemistry Pre-Level I Student Text
• Real Science-4-Kids, Physics Level 1, Student Text
• 21 Super Simple Geology Experiments
• Biology, Pre-Level 1
• Exploring the Building Blocks of Science Book 1 Teacher's Manual
• Exploring the Building Blocks of Science Book 3 Student Textbook (softcover)
• Exploring the Building Blocks of Science Book 3 Teacher's Manual
• Exploring the Building Blocks of Science Book 7 Laboratory Notebook