Helen Eccles

Trends and patterns

1996

Revise chemistry for OCR

2000

Revise AS Physics for AQA A

2005

Revise as Chemistry for AQA (Revise AS)

2001

Revise AS Biology for AQA Specification A (Revise AS)

2001

Revise A2 chemistry for OCR Specification A

2001

Periodic Table of Elements Compendium

1993

Ocr Revise A2 Chemistry A

2009

Chemistry

2004

Chemistry 1

2000

Chemistry 1 Sampler

2000

Chemistry 1 for OCR

2008