Can we really make crystals out of soap?  You bet!  These crystals grow really fast, provided your solution is properly saturated.  In only 12 hours, you should have sizable crystals sprouting up.


You can do this experiment with either skewers, string, or pipe cleaners.  The advantage of using pipe cleaners is that you can twist the pipe cleaners together into interesting shapes, such as a snowflake or other design.  Make sure the shape fits inside your jar.


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20 Responses to “Laundry Soap Crystals”

  1. Actually, calcium carbonate is added to sugar to increase the rate, size and shape that sugar crystals form! You can try both calcium carbonate and also sugar on their own, and also mix together a third solution with both to see what kinds of results you get with all three. As a scientist, you get to do the experiments once you have great questions like these to work with!

  2. marlenalucas says:

    Can I also make the laundry soap crystals out of calcium carbonate?

  3. Give it a try and see how it goes!

  4. marlenalucas says:

    Can I make the Landry soap crystals out of baking soda?

  5. Aurora Lipper says:

    Sure, you could use pipe cleaner to make shapes using sugar crystals, but you can’t eat them. Because you would be eating little bits of pipe cleaner.

  6. arrowmakercpi says:

    can you make pipe cleaner shapes for rock candy too?

  7. Aurora Lipper says:

    The laundry soap crystals are not edible. You definitely don’t want to put them in your mouth.

  8. sandrasuzannejones says:

    how do you make it sour,i like sour?

  9. Aurora Lipper says:

    Sure, you can use food coloring. But, that is optional.

  10. alfredo_gomez says:

    Can we use food coloring for this experiment

  11. Sorry about that! I’ve fixed the code, it should be working now. Please refresh the page.

  12. estriumphant1 says:

    I need help I cant watch the video anymore what do

  13. Unfortunately, other kinds of laundry soap won’t work. You must use Borax or a Borax equivalent.

  14. Can you use other kinds of laundry soap

  15. A LOT. You’ll need a whole box to do this recipe a couple of times.

  16. How much borax dose it use, Zoya age 9 3/4.

  17. I am not sure of your question – please ask again? What specifically did you need help with?

  18. misty_slayton says:

    borax is used to make slime but i didnt know it can be used for a lot of things if i do make one with borax do i have to have my mom help me make it??

  19. There are lots of things you can use, like salt, sugar, epsom salts, charcoal… keep looking in Unit 3 for more ideas!

  20. Can you make it out of bathing soap?