Map of driving directions from Spring, TX to Houston, TX. Click here to show map. Drag the line on the map to calculate the driving distance for a different route. If you want to verify these driving directions or look for another possible route, you can try. Google Maps, Bing Maps, or MapQuest.
The second (symbol: s) (abbreviated s or sec) is the base unit of time in the International System of Units (SI).
Helium is the second lightest element and is the second most abundant element in the observable universe, being present at about 24% of the total elemental mass, which is more than 12 times the mass of all the heavier elements combined.