The gas that causes bubbles in soda is:
A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Hydrogen
The outermost layer of Earth is called:
A. Mantle
B. Core
C. Crust
D. Lithosphere
The chemical symbol for gold is:
A. Ag
B. Au
C. Ga
D. Go
The main component of natural gas is:
A. Ethane
B. Butane
C. Propane
D. Methane
What type of energy is stored in food?
A. Kinetic energy
B. Chemical energy
C. Thermal energy
D. Sound energy
The study of earthquakes is called:
A. Volcanology
B. Seismology
C. Meteorology
D. Geology
Which planet has the strongest gravity in the solar system?
A. Earth
B. Venus
C. Jupiter
D. Saturn
Which blood cells fight infections?
A. Red blood cells
B. Platelets
C. White blood cells
D. Plasma
Sound travels fastest in:
A. Air
B. Water
C. Steel
D. Vacuum
The energy possessed by a moving object is called:
A. Potential energy
B. Thermal energy
C. Kinetic energy
D. Chemical energy