DIY Crystal Experiment: A Step-by-Step Guide

Have you ever wondered how crystals form and what makes them so valuable? In this DIY crystal experiment, you’ll learn how to create your very own crystal and discover the science behind it. With just a few simple materials and some patience, you’ll be able to grow a beautiful crystal that you can display or use in a variety of ways.

Step 1: Gather your materials

To start, you’ll need a few simple materials including water, Epsom salt, and a container to grow your crystal in. You’ll also need a string or stick to suspend your crystal while it grows.

Step 2: Set up your experiment

Fill your container with water and add a few tablespoons of Epsom salt. Stir the mixture until the salt dissolves completely. Then, suspend your crystal using a string or stick so that it’s suspended in the solution.

Step 3: Wait for your crystal to grow

The next step is to wait for your crystal to grow. This can take several days or even weeks, depending on the size of your crystal and the conditions in which it’s growing. Be patient and check on your crystal regularly to see how it’s progressing.

Step 4: Care for your crystal

Once your crystal has grown, it’s important to care for it properly. This means keeping it in a safe place where it won’t be damaged, and avoiding exposing it to direct sunlight or extreme temperatures. With proper care, your crystal should last for many years to come.


With this DIY crystal experiment, you’ll learn how to create your own crystal and discover the science behind it. It’s a fun and educational activity that anyone can enjoy, and the results are sure to amaze you. So gather your materials, set up your experiment, and watch as your crystal grows before your eyes!

Setting Up the Experiment

Gathering Materials

To start the DIY crystal experiment, you will need the following materials:

  • Water: You will need distilled water for this experiment, as it contains fewer impurities that can interfere with the crystallization process. You can purchase distilled water from most grocery stores or online.
  • Epsom salt: Epsom salt is a magnesium sulfate compound that is commonly used in crystal experiments. It is readily available at most drugstores or online.
  • String or thread: You will need a piece of string or thread to hang your crystal once it has formed.
  • Wooden skewers or toothpicks: These are used to suspend the crystal while it grows.
  • Paper towels: You will need paper towels to absorb any spills or drops of water during the experiment.
  • Jar or container: You will need a jar or container with a lid to hold the crystal while it grows. It is important that the container is clean and free of any impurities that could interfere with the crystallization process. A Mason jar or other glass jar with a lid works well for this experiment.

Preparing the Solution

Mixing the Epsom Salt and Water

To start, gather the necessary materials, which include Epsom salt and water. It is crucial to use a specific ratio of Epsom salt to water for the experiment to work correctly. A general guideline is to use one tablespoon of Epsom salt for every eight ounces of water. Measure the Epsom salt and water using a measuring cup or a graduated cylinder to ensure accuracy.

Dissolving the Epsom Salt

Next, add the Epsom salt to the water and stir it gently with a stirring rod or a spoon. The Epsom salt should dissolve entirely in the water. If there are any remaining solid particles, continue stirring until they have completely dissolved. It is essential to use distilled water to prevent any mineral buildup or impurities that may affect the crystal growth.

Ensuring the Solution is Clear

Before proceeding to the next step, make sure that the solution is clear and free from any sediments or impurities. If there are any impurities present, use a fine mesh strainer or a coffee filter to filter the solution. Rinse the container with water and pour the filtered solution back into the container.

Checking the pH Level

To ensure that the solution has the correct pH level for crystal growth, use a pH test strip or a pH meter. The ideal pH level for the solution is between 3 and 5. If the pH level is outside this range, adjust the pH level by adding a small amount of white vinegar or lemon juice to lower the pH or adding a small amount of baking soda to raise the pH.

Overall, preparing the solution is a critical step in the DIY crystal experiment. By following the steps outlined above, you can ensure that the solution is suitable for crystal growth and increase the likelihood of success in growing beautiful crystals.

Waiting for the Crystals to Form

Waiting for the crystals to form is a crucial part of the crystal-growing process. To ensure the best results, follow these steps:

  1. Select a container: Choose a clean, dry jar or container with a tight-fitting lid. Glass jars work well, but plastic containers can also be used. Make sure the container is free of any contaminants or residue that could interfere with the crystal growth.
  2. Prepare the solution: Depending on the type of crystal you‘re trying to grow, you’ll need to prepare a solution with the appropriate ingredients. For example, if you’re growing rock candy, mix water and granulated sugar in a ratio of 1:1. If you’re growing salt crystals, mix water and salt in a ratio of 1:1. Stir the solution until the sugar or salt has dissolved completely.
  3. Heat the solution: If necessary, heat the solution to help the sugar or salt dissolve more easily. Be careful not to overheat the solution, as this could damage the crystals.
  4. Cool the solution: Once the solution has been prepared and heated (if necessary), allow it to cool to room temperature. This will help the crystals form more easily.
  5. Add the seed crystals: If you’re using seed crystals, add them to the solution now. The seed crystals will help the larger crystals form more easily.
  6. Place the container: Place the jar or container in a safe location where it will not be disturbed. Make sure the container is level and stable to prevent spills or accidents.
  7. Wait for several days or weeks: Once the solution has been prepared and the container has been placed, wait for several days or weeks for the crystals to form. This process can take anywhere from a few days to several weeks, depending on the type of crystal and the conditions in which it’s being grown.

By following these steps, you’ll be well on your way to growing beautiful crystals in the comfort of your own home. Remember to be patient and give the crystals enough time to form properly.

Observing the Crystals

Examining the Crystal Formations

Once you have removed the crystals from the jar or container using paper towels, it’s time to examine them closely. This step is crucial in understanding the properties of the crystals and how they were formed. Here are some tips on how to examine the crystal formations:

  • Use a magnifying glass or microscope: To get a better look at the crystals, use a magnifying glass or microscope. This will allow you to see the details of the crystal formations and observe any imperfections or variations in the crystals.
  • Observe the shape, size, and color of the crystals: Take note of the shape, size, and color of the crystals. Are they uniform in shape and size, or are there variations? Do they have a specific color, or are they transparent? These observations can give you clues about the type of crystal you have formed and how it was affected by the conditions in the experiment.
  • Look for growth patterns: Pay attention to the way the crystals grew. Did they form in a specific direction, or were they distributed evenly throughout the container? Did they grow in clusters or as individual crystals? These patterns can provide insights into the conditions that promoted crystal growth.
  • Examine the edges and surfaces: Examine the edges and surfaces of the crystals for any imperfections or variations. Are there any cracks or irregularities in the crystal structure? Does the surface of the crystal have a specific texture or pattern? These observations can provide clues about the crystal’s formation and properties.

By examining the crystal formations closely, you can gain a better understanding of the properties of the crystals and how they were formed. This knowledge can be useful in future experiments and in identifying the type of crystal you have formed.

Recording Observations

Recording observations is an essential part of the crystal experiment. It allows you to track the growth and changes of the crystals over time. Here are some tips on how to record your observations effectively:

  1. Keep a journal or log of observations: This can be a notebook or a digital document where you can write down your observations. Make sure to record the date and time of each observation.
  2. Include sketches or photographs of the crystals: Sketches or photographs can help you capture the details of the crystals that may be difficult to describe in words. You can use a ruler or a scale to make sure your sketches or photographs are accurate.
  3. Record any changes or growth in the crystals over time: Pay attention to any changes in the crystals’ shape, size, color, or any other observable characteristics. Take photographs or sketches at regular intervals to compare the changes over time.

By recording your observations, you can track the progress of your crystal experiment and compare your results with others. It also helps you to identify any patterns or anomalies that may arise during the experiment. So, make sure to keep a detailed record of your observations throughout the experiment.


1. What is the crystal experiment?

The crystal experiment is a science experiment that demonstrates the formation of crystals. It involves dissolving a supersaturated solution of Epsom salt (magnesium sulfate) in water and allowing the solution to cool until crystals form.

2. What materials do I need for the crystal experiment?

You will need Epsom salt, a container (such as a jar or glass), water, a stirrer or spoon, and a string or cloth to suspend the crystal.

3. How do I conduct the crystal experiment?

  1. Measure out 1/4 cup of Epsom salt and place it in a large, heat-resistant container.
  2. Add enough water to the container to cover the Epsom salt, and stir until the salt has dissolved.
  3. Bring the solution to a boil, then reduce the heat and let it simmer for 5-10 minutes.
  4. Remove the container from the heat and let it cool to room temperature.
  5. Once the solution has cooled, use a string or cloth to suspend the crystal from a fork or spoon, and allow the crystals to form overnight.
  6. The next day, you should see crystals forming on the string or cloth.

4. Why does the crystal experiment work?

The crystal experiment works because Epsom salt is soluble in water, but when the solution is heated, the salt dissolves more readily. This creates a supersaturated solution, where there is more solute (salt) in the solution than would normally be possible. When the solution cools and the crystals form, they begin to grow rapidly as the excess solute is forced to come out of solution and form crystals.

5. How can I make the crystals grow faster?

You can make the crystals grow faster by using a larger amount of Epsom salt or by increasing the temperature of the solution. You can also try using different types of salt or adding other substances to the solution to see how they affect the crystal growth.

6. What are some variations of the crystal experiment?

There are many variations of the crystal experiment that you can try. For example, you can try making a supersaturated solution with a different type of salt, or you can add food coloring to the solution to create colored crystals. You can also try growing crystals using different shaped containers or by using different types of suspension materials.

Crystallization Experiment – Grow Salt Crystals | DIY Science Project

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