Crystal Growth and Properties

In this video, Jessica and her helper Maddie from the Buena Vista Museum demonstrate how to grow crystals using borax, water, and pipe cleaners. They guide viewers through the process of preparing materials, creating a borax solution, and observing crystal growth over 24 hours. The video also explains the science behind crystal formation, including the role of saturated solutions and molecular behavior. Viewers learn about the chemical process and the conditions necessary for crystal growth.

What is the first step in the crystal growing activity?

• Mixing borax with water

• Boiling water

• Cutting pipe cleaners

• Observing crystals

Which material is used to create the shapes for crystal growth?

• String

• Pipe cleaners

• Skewer

• Borax

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

• One

• Four

• Three

• Two

What should you do after submerging the pipe cleaners in the solution?

• Heat the solution

• Add more borax

• Stir the solution

• Leave it for 24 hours

What is observed after 24 hours of crystal growth?

• Different sizes of crystals

• Only small crystals

• The solution evaporates

• No change

What is the role of boiling water in the crystal growing process?

• It prevents crystal growth

• It colors the crystals

• It dissolves more borax

• It cools the solution

What happens to the molecules in water when it is boiled?

• They change color

• They form a solid

• They move farther apart

• They move closer together

What is a saturated solution?

• A solution with less powder than it can hold

• A solution with more powder than it can hold

• A solution with equal parts powder and water

• A solution with no powder

What causes the particles to settle and form crystals?

• Adding more water

• Cooling the solution

• Heating the solution

• Stirring continuously

What ensures the symmetrical shape of crystals?

• Perfectly arranged molecules

• Uneven growth

• Impurities

• Random arrangement