The Dutch National Science Quiz 2008

It's there again, the most inspiring scientific quiz of The Netherlands: The National Science Quiz. Do you know the answers to the twenty mind-blowing or maybe just easy questions? What are your theories that brings you to that certain answer? Exchange your ideas by responding to this post and when you think you got all those answers right consider participating by posting your answers at the VPRO (celebration for the spirit) and you might compete for a prize (though I doubt if internationa participants are allowed, its a national quiz after all). On Christmas Eve the answers will be given on television.
(the translation is quite poor so far, but I will try to improve it)

Question 1: What happens when you open a bottle of champagne in the international Space station (ISS)? 

Question 2: When a space shuttle returns to the earth, it will first return into a lower orbit around the earth. What will then happen to its forward velocity? 

Question 3: How will the shape of our planet transform in the future? 

Question 4: Why is it that dark skinned people are usually perceived less old in comparison to people with lighter skin tone? 

Question 5: A car drives in circles with a fixed angle of its steering wheel. Will there be a difference in the size of the circle it makes by driving either forward or reverse? 

Question 6: How do the oil balls in a pan with ebullient oil come float above? 

Question 7: You play a well-known melody on an instrument and take that. Vervolgens cut you 1/25ste of the beginning of the tones gone. Someone who listens to the prerecording: 

Question 8: Above 15,000 Hertz you can hear sounded hardly more. What hears hear you as tones at the same time two of respectively 15,000 and 20,000 Hertz late? 

Question 9: What demands on average the most of effort? 

Question 10: What happens there eventually with 95 per cent of the fotonen - lichtdeeltjes - which roams round in the universe? 

Question 11: How does it come indicate that less weight to the most of electronic balances on a gentle subsoil then on a hard subsoil? 

Question 12: What is maximum altitude with which you with a firm straw a glass can drain water in one time? 

Question 13: What will happens to the reception quality of radio signals, when there is not just a couple of thousands, but a couple of million people listening to the radio broadcast? 

Question 14: When is an egg the heaviest? 

Question 15: What to see you first as someone vanachter you do sudden langszij, beyond run? 

Question 16: Your hand is appropriate to a round banister exactly, so that can inch and middle finger touch each other. What happens there if you attract a glove and your hand lays for the leuning? 

Question 17: You throw a number of times with a coin, someone else throws with a coin one more time. How big is the chance that he throws head more often than you? 

Question 18: Which snow melts the fastest? 

Question 19: You fill a small beer bottle with such an amount of water that it will still float upside down in the water. Why is it that the bottle will sink to the bottom when you push it considerably down under water? 

Question 20: A heavy object is attached on top of a blown up innertube that floats in water. What will happen when you attach the object under the innertube?

Participation in the national science quiz (senior person and Junior) is possible until 12:00 at Monday 15th of December. Then invulformulieren by mail must or by means of Internet within its. You can send in you definite answers of national science quiz on the site of the NWO