With term life insurance you get temporary life insurance that provides life insurance protection for a set number of years.
Most term life plans area available for a "term" of 10, 15, 20, 25 or 30 years.
And, annual renewable term life insurance policies provide life insurance for a term of one year which you can renew at the end of the year for another 1 year term at a higher premium.
Also, level term life insurance is the most common type of term insurance and it provides you with rates that are guaranteed to remain the same each year for the entire term of your term life policy, while the amount of life insurance coverage remains level, too.
You can compare instant term life rates online for all the terms available to see how much of an increase you may pay for a longer term, for instance, 10 year term compared to 15 and 20 year term life insurance.