Crystallization Experiment Concepts

Crystallization Experiment Concepts

Assessment

Interactive Video

Chemistry

5th - 6th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

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.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main chemical used in the crystallization experiment?

Calcium carbonate

Magnesium sulfate

Sodium chloride

Sodium borate

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

Clear jars

Plastic bottles

Popsicle sticks

Pipe cleaners

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

4 tablespoons

1 tablespoon

2 tablespoons

3 tablespoons

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the water molecules as the solution cools?

They change color

They move farther apart

They evaporate

They come closer together

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What shape do borax crystals form as they rebuild?

Spheres

Cubes

Pyramids

Hexagons

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