Eyewitness Chemistry

Marsoni

M251S

$16.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Eyewitness ChemistryChemical processes have always been a part of life. They enable our bodies to function and are the basis of countless substances and processes we take for granted. This intriguing book explores the world's natural chemistry and how we understand and exploit it. From the first use of fire, people have practiced chemistry to produce food and drink, tan leather, make dyes for clothes and cosmetics, work metals, and produce glass and pottery. Today,

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I took a chance on these ropes being the right size diameter for my English Bulldog. So many times in pet stores they either have just the huge diameter for the large breed dogs or the very small diameter and length for the little dogs. These were perfect and a great value getting two ropes of the same size.

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Reviewed in the United States on January 14, 2026

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Amazon Customer

Omaha, US

★★★★★ 5

Great value for my money.

Strong and durable and just the right length my puppy can't bite my hand while playing with him

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Reviewed in the United States on April 28, 2026

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Lorraine Nathanson

Port Orchard, US

★★★★★ 5

Colorful, Sturdy & Great Value

Color: Large Set of 4

Purchased for our two puppies when they were 2 months old and weighed about 14 pounds so theses balls were a little big for them to hold in their mouths but that didn't stop them from trying. While they did like these balls they much preferred softer soccer balls, the later of which did not hold up well at all. I had hoped they would play with these balls more when they were older but that hasn't happened 5 months later. I guess it's no fun if you can't tear the toy apart. Colors are very bright and they do enjoy chasing after them as long as I am the one rolling them across the room for them. Maybe when they progress to batting things with their paws they will start to do this for themselves.

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Reviewed in the United States on May 18, 2025