The change of the seasons
There are four seasons in a year: winter, spring, summer and autumn. Each lasts three months and a year has 12 months. Seasons change because Earth goes round the Sun and its axis is tilted. The part of Earth tilted towards the Sun has summer; the part tilted away has winter. In winter days are short and cold and plants do not grow. In spring days get longer, grass sprouts and trees bud. In summer it is hot and fruit and vegetables ripen. In autumn days shorten and leaves turn yellow and fall.
“Seasons wheel”: divide a paper circle into 4 parts: draw one season in each (leaf, snow, flower, fruit) and write three signs. Then the teacher names a sign (“The river freezes”, “Fruit ripens”) and children point to the season. You can also show the model with a lamp and globe: Earth’s axis tilts one way, so sunlight hits each part differently. Safety: do not look straight at the lamp.