Geo is for "earth"

There are many ways to protect the environment—composting, recycling, carpooling, using green cleaning products, buying local goods and printing double-sided documents—just to name a few.

Here at the Portal, we’ve put the focus on our home planet with a quiz on terms formed from geo‑ (a root that means “earth” in Greek). Match the definitions below with the correct word to learn some new earth-related vocabulary!

1. The science of dating rock formations
2. The science that studies the earth's size, shape and gravitational field
3. A marketing strategy that takes geographical information into account
4. The solid surface of the earth
5. A permeable material used in civil engineering
6. A specialist in geometry
7. An instrument designed to detect vibrations passing through the earth's crust
8. The practice of restricting access to Internet content on the basis of the location of the user’s IP address
9. An outdoor treasure-hunting activity that uses GPS-enabled devices
10. A rock containing a small, crystal-lined cavity