Crystals hook together to form larger snowflakes. The size of a snowflake depends on the number of crystals hooked together. Snowflakes have six sides. It can be too cold to snow. Fahrenheit or 0 degrees Celsius to snow.
Snow can come from any cloud that is layered.
Snow can be deep in one place and bare in another. Snow at the North and South Poles reflects heat into space. Snowflakes join to make bigger snowflakes. Look carefully at the snowflake pictures. Find one you like and describe it.