A PLANET CALLED

THE EARTH

air river

Lake

Mountain

Polar Region WaterValley

WATER ON EARTHsalt water – fresh water

The fresh water in rivers, lakes and

underground water comes from rain, and snow and

ice melting.

We cannot drinkthe water in

seas and oceansbecouse it

contains salt.

OBJECTS IN THE SKY: stars, planets and satellites.

DAY AND NIGHT

When the sun comes up, it is sunrise

When the sun is highestin the sky, it is midday When the sun goes

down, it is sunset

THE SEASONS

WHY ARE THERE DIFFERENT SEASONS?

THE END