Where Do Pearls Come From?

Where Do Pearls Come From?

Assessment

Interactive Video

Science

1st - 6th Grade

Hard

Created by

Quizizz Content

FREE Resource

The video explains the uniqueness of pearls compared to other gemstones. Unlike gemstones formed by geological processes, pearls are created by oysters in the ocean. When a foreign object gets trapped in an oyster's shell, it coats it with nacre, forming a pearl. Pearls vary in size, shape, and color and are rare because not all oysters produce them. The video also discusses the rarity and discovery of pearls, sometimes found accidentally. Viewers are encouraged to engage by asking questions.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What makes pearls different from other gemstones like diamonds and rubies?

They are always perfectly round.

They are formed by oysters, not geological processes.

They are found only in freshwater.

They are made of pure gold.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What substance do oysters use to coat irritants inside their shells?

Calcium

Nacre

Silica

Salt

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are pearls considered rare?

Not every oyster makes a pearl, and it takes years to grow.

Pearls are made of diamonds.

Pearls are only found in freshwater.

All oysters produce pearls.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one reason why pearls can be different in shape and color?

They are painted by humans.

They are affected by the type of water they are in.

They are influenced by the type of nacre used.

They are shaped by the oyster's shell.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How long can it take for a pearl to become large enough for jewelry?

A few hours

Several months

Several years

A few days