Crystal Formation and Properties

Crystal Formation and Properties

Assessment

Interactive Video

Science, Chemistry

5th - 8th Grade

Practice Problem

Hard

Created by

Emma Peterson

FREE Resource

The video tutorial demonstrates how to create mini crystals using construction stones and vinegar. The process involves gathering dark construction stones, immersing them in vinegar, and waiting for a month for the vinegar to evaporate, leaving behind crystals. The video explains the chemical reaction where vinegar corrodes the stone, leading to crystal formation. It also mentions other crystal experiments, such as creating crystals inside an egg and sugar crystals, providing links for further exploration.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What materials are needed to start the mini crystal creation process?

Salt and lemon juice

Sugar and baking soda

Sand and water

Construction stones and vinegar

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in preparing the stones for crystal formation?

Boil the stones

Freeze the stones

Find dark construction stones

Paint the stones

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How long should the stones be left in vinegar for the initial reaction?

One month

One week

One day

One hour

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the expected time for the crystals to fully form?

One week

One day

Two months

One month

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the vinegar during the crystal formation process?

It evaporates completely

It turns into a solid

It changes color

It becomes thicker

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of the gas produced during the reaction?

It makes the stones heavier

It changes the color of the stones

It helps form the crystals

It dissolves the stones

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the by-products of the reaction between vinegar and stones?

Sugar and acid

Oil and sand

Gas and dissolved salts

Water and salt

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