Crystallization Experiment Concepts

The video tutorial explains the process of crystallization by dissolving borax in boiling water and observing crystal formation on pipe cleaners. It covers the materials needed, the preparation of the solution, and the scientific principles behind crystallization. The tutorial emphasizes the importance of monitoring the process and provides a clear explanation of how crystals form as the solution cools. The video concludes with a summary and suggestions for further reading.

What is the main chemical used in the crystallization experiment?

• Calcium carbonate

• Magnesium sulfate

• Sodium chloride

• Sodium borate

Which of the following is NOT a material needed for the experiment?

• Clear jars

• Plastic bottles

• Popsicle sticks

• Pipe cleaners

What should you do if you want to try this experiment at home?

• Skip the borax

• Have a grown-up with you

• Use cold water

• Use a plastic container

How many tablespoons of borax are needed per cup of boiling water?

• 4 tablespoons

• 1 tablespoon

• 2 tablespoons

• 3 tablespoons

Why is it important to mix borax while the water is still hot?

• To prevent the water from evaporating

• To cool the water faster

• To ensure the borax dissolves completely

• To make the solution colorful

What happens to the water molecules as the solution cools?

• They change color

• They move farther apart

• They evaporate

• They come closer together

What shape do borax crystals form as they rebuild?

• Spheres

• Cubes

• Pyramids

• Hexagons

Why does the icicle provide a clearer view of the crystal formation?

• It is made of a different material

• It is thinner, allowing larger crystals to form

• It is a different color

• It is submerged longer

What is the scientific term for the process observed in the experiment?

• Condensation

• Sublimation

• Evaporation

• Crystallization

Which shape grew more crystals, the snowflake or the icicle?

• Snowflake

• Icicle

• Both grew equally

• Neither grew crystals