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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
Smithsonian Crystal GrowingThis STEM science kit contains everything you need to grow three colorful crystal formations emerald green, aquamarine blue, and golden citrine. Begin observing crystallization within just a few hours of completing the chemistry portion of your experiment. Then, watch crystals grow over several days. A full color STEM poster teaches about the different types of crystals and their applications in technology like televisions, radios, and computers.
This STEM science kit contains everything you need to grow three colorful crystal formations – emerald green, aquamarine blue, and golden citrine. Begin observing crystallization within just a few hours of completing the chemistry portion of your experiment. Then, watch crystals grow over several days. A full-color STEM poster teaches about the different types of crystals and their applications in technology like televisions, radios, and computers. • Build and paint a model volcano. • Simulate an eruption with baking powder and vinegar (not included). • Lava glows in the dark! • Ages 8+ • Adult supervision is required.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 782 reviews
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Product Reviews
★★★★★ 5
Buy it!
Size: One Size, Color: (001) Black / Black / Reflective, Size: One Size, Color: (001) Black / Black / Reflective
This hat (visor) is by far one of the most comfortable ones I’ve ever worn! Absolutely love it!!!!
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Underarmor
Size: One Size, Color: (001) Black / Black / Reflective
Me encanta todo lo de esta marca. Calidad
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Great running visor
Size: One Size, Color: (541) Tux Purple / Pitch Gray / Reflective
Love love love this visor. Light weight and great to run in. Highly recommend
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Reviewed in the United States on September 1, 2025
★★★★★ 5
Perfect Visor
Size: One Size, Color: (001) Black / Black / Reflective
I bought this thinking I wouldn’t like it. I was so wrong. This is lightweight and the perfect fit. What a great value. It’s so comfortable on your head and the vent on it was a great idea. Adjusts easily and just a great buy.
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Reviewed in the United States on July 27, 2024
★★★★★ 5
A great sport visor
Size: One Size, Color: (100) White / White / Reflective
My head is small so a lot of visors don’t fit because of the Velcro. This is perfect and the ability to wet it for coolness is great. Love it for tennis.
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Reviewed in the United States on August 14, 2025