1. SCIENCE
(Theory)
Std – VIII 1

2. By Ms. Marilyn Rebello. St. Xavier's Boys' Academy.

3. SIRIUS The brightest star visible to us. THE DOG STAR
By Ms. Marilyn Rebello. St. Xavier's Boys' Academy.

4. Orion
The Hunter
By Ms. Marilyn Rebello. St. Xavier's Boys' Academy.

6. Points to remember
The moon takes 27.3 days to complete 1 revolution around the earth AND also make 1 rotation around itself
But the moon takes 29.5 days to go from one New Moon phases to the next.
Waxing moon= moon grows brighter
Waning moon= moon grows dimmer
Rotation- spinning of a planet about its internal axis
Constellation=group of stars.
The sky is divided into 88 parts identified by 88 constellations one in each part. Northern Hemisphere-37 constellations Southern Hemisphere-51 constellations
By Ms. Marilyn Rebello. St. Xavier's Boys' Academy.