Describe an experiment to show that solids expand on heating and contract on cooling.

Name one substance which expand on heating.

Give an example to show that friction produces heat?

Mention the experiment that shows that colloidal particles are electrically charged.

Conduct an experiment to show the space between the particles of matter and write the report.

Describe Davission and Germer experiment to establish the wave nature of electrons. Draw a labelled diagram of the apparatus used.

Describe the experiments of monohybrid cross in guineapig with checkerboard.

Describe Young's double slit experiment. State the nature of the distribution of intensity of light on the screen. What happens of the distribution of intesity if one of the slits is covered?

The laderberg replica plating experiment showed that

Describe the sequences of events of chemical changes during muscular contractions.