The degree of heat or cold in the atmosphere as measured by a thermometer.
Lines drawn on a weather map to connect places of equal pressure.
The wide mouths of rivers formed when tides rush up narrow rivers.
An irregular wind which swirls around a low pressure area.
Openings in the Earth's crust out of which steam, gases and molten rocks are forced.
The shaking or movement of the Earth.
A stream or river which empties into a main river.
The process in which water changes to water vapour.
A steep descent or fall in the flowing of a river.
A severe tropical storm which revolves around a centre of low pressure.
A mass of snow and ice which slips down a mountain side.
The Sun and all the planets around it are called the
Rotation of the Earth causes _________________ and _____________________ .
Lines of latitude and longitude enable us to measure __________________ on a map.
Ocean currents follow the direction of the _________________________________.
Cirrus and Cumulus are types of _____________________.
A blizzard is a blinding storm of ____________________ and wind.
A fog is a ___________________ resting on the Earth;
a cloud is a ________________________ floating high in the air.
Hail is caused by the _______________________ of raindrops as they pass
through layers of cold air.
An eclipse of the Sun is when the ____________________ comes
between the Sun and the ___________________.