Snowflakes

The video explains how snowflakes form and why each is unique. Snowflakes form when water droplets freeze in clouds at temperatures below 0°C. As they fall, they encounter varying temperatures, causing changes in their size and shape. At just below freezing, they appear as hexagonal plates, while colder temperatures create intricate patterns and dendrites. Each snowflake's unique path through the atmosphere results in diverse shapes and sizes by the time they reach the ground.

What is unique about snowflakes when observed under a microscope?

• They are all identical.

• No two are exactly the same.

• They are all circular.

• They are all square.

At what temperature do snowflakes begin to form?

• Above 0°C

• At 5°C

• At 0°C or lower

• At 10°C

How do snowflakes change as they fall from the clouds?

• They remain the same size and shape.

• They melt completely.

• Their size and shape change.

• They become liquid water.

What shape do snowflakes resemble at temperatures just below freezing?

• Triangular plates

• Square plates

• Hexagonal plates

• Circular plates

What are the sharp arms that branch out from snowflake crystals called?

• Needles

• Spikes

• Branches

• Dendrites