1. Which gas evolves when charcoal is burnt?   Ozone   Oxygen   Carbon Dioxide   Nitrogen   Hint Half-n-half Clue   2. Which planet is known as the Red Planet?   Mercury   Earth   Mars   Jupiter   Half-n-half Clue   3. Enzymes and anti-bodies are mainly made of   Carbohydrates   Proteins   Vitamins   Fats   Half-n-half Clue   4. The three methods of science are observation, experimentation and _______.   measurement   deduction   inference   hypothesis   Half-n-half Clue   5. The Sun is a   Comet   Star   Satellite   Huge Planet   Half-n-half Clue   6. Where is the Sea of Tranquility?   Near the Bermuda Triangle   In the Pacific Ocean   On the Moon   In the Atlantic Ocean   Half-n-half Clue   7. What is known as the universal solvent?   Sulphuric Acid   Hydrochloric Acid   Aqua Regia   Water   Half-n-half Clue