Hydrosphere
Basic vocabulary
water
salty water fresh water
The physical state of water
liquid gassolid
water water vapourice
The water cycle
* salty water
ocean
sea
ocean dynamics
wave tide
ocean currents
warm
cold
* fresh water
river lake
iceberg
river course
lower course
upper course
middle course
features of a river
deposition
transportationerosion
MMRB