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Description
Thames & Kosmos Happy Atoms Complete Set Chemistry Kit for Ages 10-17Chemistry is the science of materials, their properties, and how they react with each other. All materials are made of atoms. Why do some atoms combine with each other while other atoms do not? Because atoms just want to be happy! Of course, atoms dont really have feelings. But they do have observable behaviours. Atoms tend to be more stable, or happy, when they have certain numbers of electrons whizzing around their cores. Where do they find extra
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.8 ★★★★★
Based on 1220 reviews
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Product Reviews
★★★★★ 4
Slightly smaller than expected
Size: 34, Color: Light Grey 870
I wear a size 34, but these jeans fit like a 32. I'm 6'4" and the length, looks better in mid to high top shoes. I would suggest going a size up.
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Reviewed in the United States on January 21, 2026
★★★★★ 1
Cheap material waste a time and money
Size: 42, Color: Light Grey 870
Lied it’s not slim fit material feels really cheap regret wasting my time waiting it’s bad cause as soon as I got it I went in and try it material upset me first then the foot was really big and I know the description said slim fit I went back into Amazon and immediately process a return it’s going right back where it came from even SHEIN pants was thicker than this cheap paper material
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Reviewed in the United States on May 31, 2026
★★★★★ 3
Need to get a size up
Size: 36, Color: Light Blue
They are a bit snug get a size up
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Reviewed in the United States on February 7, 2026
★★★★★ 5
Great buy
Size: 32, Color: Black
Pants were as advertised. The color was very good and they were true to size. The detailing on the front is great! Very stretchy too which is a big plus
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Reviewed in the United States on November 8, 2025
★★★★★ 5
Bueno
Size: 28, Color: Lightblue971
Muy bonito y buena calidad
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Reviewed in the United States on March 13, 2026
