Virtual Science Quiz Bowl (Average)

Which of the following hormones is responsible for the emotional states such as fear, anger and tension and a rise in blood pressure and heart rate?    

• Somatotrophin 
• Oxytocin
• Thyroxine
• Adrenaline 

Survival of the fittest' was proposed in his theory of evolution by  

• Darwin
• Lamarck
• Mendel 
• Hugo de Vries 

Who used a flask with a curved neck to prove that spontaneous generation did not occur in a broth?  

• Pasteur
• Darwin
• Spallanzani 
• Redi

What layer of the atmosphere contains the ozone layer?

• Stratosphere
• Troposphere
• Mesosphere
•  Thermosphere

What is an example of a planetesimal hypothesis?  

• One star passed by from another star
• A star and another heavenly bodies collided
• A star was formed in a nebula
• All of the above 

If the forces acting upon an object are balanced, then the object ___________. 

• must not be moving
• must be moving with a constant velocity.
• must not be accelerating
• none of these

Two people travel from one town to another separately in separate cars – car A and car B. The person in car B starts 1 hour after the person in car A. As both reach the other town at the same time, do they correctly conclude that their cars are of the same power?

• Yes, car B  and car A have equal power
• No, car A has more power than car B 
• No, car B has more power than car A
• Data is insufficient to conclude anything.

A car possesses 25 000 units of momentum. What would be the car's new momentum if both its velocity was doubled and its mass was doubled.

• 25 000 units
• 50 000 units
• 75 000 units
• 100 000 units

Ethyl butanoate (C₃H₇COOC₂H₅) is the substance responsible for the aroma of pineapple. What is the molar mass of ethyl butanoate?

• 118.00 g/mole 
• 117.12 g/mole
• 120.12 g/mole
• 116.18 g/mole

Arrange the following substances from the lightest to the heaviest:     
Cl₂; CH₄; H₂O; NH₃; N₂  

• H₂O< NH₃< N₂< CH₄< Cl₂ 
• CH₄< NH₃< H₂O< N₂< Cl₂
• N₂< Cl₂< H₂O< CH₄<NH₃
• NH₃< CH₄< Cl₂< H₂O< N₂