$7.00
Used Good
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Used Good
Out of stock
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An ordinary ziplock bag becomes a safe and spectacular laboratory, as students mix chemicals that bubble, change color, get hot, and produce gas, heat, and an odor. They experiment to determine what causes the heat in this chemical reaction. This exciting activity explores chemical change, endothermic and exothermic reactions, and is a great introduction to chemistry. Has often been adapted for lower grade levels. This "GEMS Classic" continues to be one of the most popular GEMS activities.
Grades 6–8
2 Sessions
40 pages
ISBN: 0-924886-06-4
Regular price: 10.00; this used book is in GREAT, like new condition
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$7.00
Out of stock
FREE Shipping
Used Good
Out of stock
FREE Shipping
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