Keeping Time with the Skies — Science STD 8 — Question

What the three types of protected area which have been earmarked for the conservation of forest and wildlife.

Write the name of the products obtained when coal is heated strongly in the absence of air.

What is this act of fusion called?

A chapati maker is a machine that converts balls of dough into chapatis. What effect of force comes into play in this process?

Name two animal organs and two plant organs.

What name is given to the maximum displacement of a vibrating body from its central position?

Name the characteristic of sound which can distinguish between the 'notes' (musical sounds) played on a flute and a sitar (both the notes having the same pitch and loudness).

Name any two parts which are present in a plant cell but not in an animal cell.

State whether the following statements are true or false:
All the cells in our body are alike.

Which type of substances produce flame? Does charcoal burn with flame ?