Here is a short quiz about GRACE (Gravity Recovery and Climate Experiment). All of the answers can be found on our GRACE web site. Press the grade button to see how you did. If you score 70% or better, we will mail you a special prize. See who else has won a special prize.

  1. How many satellites does GRACE use?
    1 2 3 4

  2. How long will the GRACE mission last?
    1 year 2 years 5 years 7 years

  3. GRACE will provide a __________.
    new global positioning system new remote sensing data center new model of the earth's gravity field new science data system

  4. GRACE will help to unravel global climatic issues by enabling a better understanding of _________.
    surface currents ozone depletion El Niño global positioning system

  5. GRACE will help solve global climate issues by providing a better understanding of _________.
    glaciology global positioning system ocean heat transport the gravity field

  6. GRACE will measure the mass balance of ice sheets and ___________.
    glaciers snow land ocean

  7. Grace will monitor changes in the ____________ and snow on the continents.
    amount of rain mass of rain storage of water temperature of water

  8. GRACE will launch into polar orbit from _________.
    Munich Houston Plesetsk Baikonur

  9. GRACE will be launched near the next __________.
    lunar minimum lunar maximum solar minimum solar maximum

  10. The baseline mission starts with a single launch of both the GRACE satellites on board what launch vehicle?
    Titan Space Shuttle Rockot Atlas


Last Modified: Feb. 11, 2000