Changes in electronegativity across Period 3 Animation Play

Changes in sex structure in mammals and birds Chart Play

Changes in structure and number of chromosomes Animation Play

Changes in structure and number of chromosomes Student activity Play

Changes in the atomic radius of s-block elements within the period Animation Play

Changes in the first ionisation energy across Period 3 Animation Play

Changes in the first ionisation energy across Period 3 Illustration Play

Characteristics of living organisms Student activity Play

Chemical equations Student activity Play

Chemical properties of oxides Student activity Play

Chemical reactions in practice Whiteboard exercise Play

Chemical reactions in practice Student activity Play

Chemical shift and molecular structure Whiteboard exercise Play

Chemical shift and molecular structure Student activity Play

Chemical structure of a single DNA strand Illustration Play

Chemical structure of auxin (IAA) Glossary Play

Chemical structure of carbohydrates Student activity Play

Chemical structure of carbohydrates Slideshow Play

Chemical structure of carbohydrates Whiteboard exercise Play

Chemical structure of DNA Student activity Play

Chemical structure of DNA Whiteboard exercise Play

Chlorophylls a and b – the structure Illustration Play

Chloroplast structure Animation Play

Chloroplast structure Slideshow Play

Chloroplasts and chlorophyll in the process of photosynthesis Student activity Play