When is a snow crystal called a "twin", consisting of twelve arms?

When 2 crystals start from the original speck and form.

What does the shape of a snow crystal depend on?

How wet and cold the cloud is that it falls through

How is a snowflake created?

Snow crystals bumping into each other and sticking together

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The Story of Snow

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Reading comprehension quiz

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Answers

1
When is a snow crystal called a "twin", consisting of twelve arms?
When 4 crystals start from the original speck and form.
When 6 crystals start from the original speck and form.
When 2 crystals start from the original speck and form.
When 12 crystals start from the original speck and form.
2
A speck is in the center of a snow crystal. What are specks made from?
Water, air and salt
Dirt, ash, salt and bacteria
dirt, salt, air, water
Only bacteria
3
What does the shape of a snow crystal depend on?
How wet and cold the cloud is that it falls through
The heat while passing through a cloud
The size of the speck
The amount of water vapor that sticks to the snow crystal
4
Water droplets can strike a crystal, freezing it forming little bumps on the crystal called___?
specks
rime
columns
plates
5
Which snow crystal shape is not flat?
The dish-shape
The plate-shape
The column-shape
The star-shape
6
What can we tell by the picture of complicated snow crystals through a microscope?
That all are exactly alike
That no 2 are exactly alike
That all resemble flowers
That all appear to be 2 basic shapes
7
What happens to a snow crystal after it falls from the clouds?
The dirt and salt in the air changes its shape
It grows bigger and heavier
Its speed increases
It grows and starts to wither
8
How many arms does the star-shaped snow crystal have?
10
6
4
8
9
How is a snowflake created?
Tiny particles attaching to the snow crystal as it falls
Snow crystals bumping into each other and sticking together
By water droplets striking and sticking to the crystal
By the snow crystals growth after falling below the clouds
10
How do plate crystals differ from star crystals?
They are thick crystals
They don't have arms
They have 8 sides
They aren't flat

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