Dating of rocks Student activity Play

Decantation Animation Play

Decay reaction Whiteboard exercise Play

Decay series and half-life Student activity Play

Decay series and half-life Whiteboard exercise Play

Density of gases Student activity Play

Density of gases Whiteboard exercise Play

Density of hydrogen Animation Play

Derivation of the formula Animation Play

Different structures Animation Play

Diffusion Student activity Play

Diffusion in gases Student activity Play

Diffusion in gases Whiteboard exercise Play

Discovering matter Student activity Play

Discovery of elementary particles Whiteboard exercise Play

Discovery of elementary particles Student activity Play

Dissolution Student activity Play

Do liquids have a specific shape? Whiteboard exercise Play

Do liquids have a specific shape? Student activity Play

Effect of number of gas particles on the pressure Animation Play

Elementary particles Class activity Play

Elementary particles Whiteboard presentation Play

Even and odd nuclei Student activity Play

Even and odd nuclei Animation Play

Evolution of the Universe Illustration Play