1. Which planet is known as the Red Planet?   Mercury   Earth   Jupiter   Mars   Hint Half-n-half Clue   2. The Earth is surrounded by an insulating blanket of gases which protects it from the light and heat of the Sun. This insulating layer is called the   Biosphere   Hydrosphere   Lithosphere   Atmosphere   Half-n-half Clue   3. The Sun is a   Satellite   Star   Huge Planet   Comet   Half-n-half Clue   4. The tail of a comet always points towards the Sun.   True   False   5. The three methods of science are observation, experimentation and _______.   inference   hypothesis   deduction   measurement   Half-n-half Clue   6. Where is the Sea of Tranquility?   In the Atlantic Ocean   On the Moon   Near the Bermuda Triangle   In the Pacific Ocean   Half-n-half Clue   7. The science that deals with the study of sound is known as acoustics.   True   False