EDS (16)

1. The position of an element in the Periodic Table is determined by its _____number? ( proton )
2. The salinity of sea water is determined by the amount of common salt (Sodium chloride) in _______ of sea water. ( 1 kg)
4. The planet which is easily visible from the Earth is: Venus
5. The Great Spot is on the planet: ( Jupiter )
6. The Great Spot is a: ( storm )
7. The bodyguard of the Earth is ______that save the Earth from many Comets and Asteroids. ( Jupiter)
8. 1 light year = ? ( 9.5 x 10 ^ 12 km)
9. - The number of planets visible to us without using a telescope is: ( 5)
10. According to Big Bang Theory, the Universe began about ____ billion years. ( 10-20 billion )
11. Biosensor is used to measure: blood glucose level
12. Einstein's famous equation which states that mass and energy are interchange: E= mc^2
13. The SI unit of electric current is: Ampere
14. The Principle constituent of the atmosphere of the Earth is: Nitrogen
15. What is Dry Ice? Solid Carbon Dioxide
16. What are the primary colours? Red, yellow, Blue