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Language:Chinese.SoftCover.Pub Date:2015-09-01.publisher:Popular Science Press.description:Paperback. Pub Date: 2015-09-01 Pages: 16 Publisher: Popular Science Press fun scientific experiments package a variety of secret writing information packets through pH aqueous reagent case lemon powder and baking soda solution discoloration. let 8
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Fun scientific experiments package a wide variety of information Steganography(Chinese Edition)
ISBN 10: 7110086631
ISBN 13: 9787110086636
New
paperback
Seller: liu xing, Nanjing, JS, China
Seller rating 5 out of 5 stars
paperback. Condition: New. Language:Chinese.Paperback. Pub Date: 2015-09-01 Pages: 16 Publisher: Popular Science Press fun scientific experiments package a variety of secret writing information packets through pH aqueous reagent case lemon powder and baking soda solution discoloration. let 8 ~ children under 12 years of preliminary understanding of acid-base indicator in case of acid-base discoloration phenomenon in the game experience of scientific knowledge. Seller Inventory # CW010739