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Description
KOSMOS Chemielabor C 3000Was ist eine Destillation? Wie funktioniert Elektrolyse und was ist eine Redoxreaktion? Hobbychemiker und junge Forscher lernen bei 333 Experimenten vielfltige chemische Arbeitstechniken kennen und arbeiten an komplexen Versuchsaufbauten. Die reichhaltige Laborausrstung ermglicht eine vertiefende Beschftigung mit der Chemie in einem didaktisch aufbauenden Kurs. In der ausfhrlichen, reich bebilderten Anleitung werden weite Bereiche der anorganischen
Was ist eine Destillation? Wie funktioniert Elektrolyse und was ist eine Redoxreaktion? Hobbychemiker und junge Forscher lernen bei 333 Experimenten vielfältige chemische Arbeitstechniken kennen und arbeiten an komplexen Versuchsaufbauten. Die reichhaltige Laborausrüstung ermöglicht eine vertiefende Beschäftigung mit der Chemie in einem didaktisch aufbauenden Kurs. In der ausführlichen, reich bebilderten Anleitung werden weite Bereiche der anorganischen und organischen Chemie vorgestellt. Mit Experimenten wird die Chemietheorie anschaulich und verständlich erklärt: Atombau und chemische Bindung, chemische Formeln, Periodensystem und Elementfamilien, chemische Reaktionen, Metalle, organische und anorganische Verbindungen und viele weitere Begriffe der Chemie. Ganz nebenbei werden eigenständiges Experimentieren und selbstständiges Weiterforschen gefördert. Inhalt: 16 Chemikalien, Stativ, Spiritusbrenner, Brennergestell, 7 hitzebeständige Reagenzgläser, Reagenzglasständer und -halter, Siedestab, Erlenmeyerkolben, Tropfpipetten, Messbecher mit Deckel, Abdampfschale, Schutzbrille, Anleitung (192 Seiten) und weitere Teile. Zusätzlich benötigt:1 x 9-Volt-Blockbatterie Typ 6LR61, Brennspiritus, entmineralisiertes Wasser, Essigessenz, Natron, Zitronensäure, Hirschhornsalz, flüssige Zukaufchemikalien (10 ml 1%ige Silbernitrat-Lösung, 100 ml 4%ige Natronlauge, 100 ml 7%ige Salzsäure, 100 ml 3%ige Wasserstoffperoxid-Lösung, 50 ml 3,4% Ammoniak-Lösung), einige LebensmittelAchtung! Für Kinder unter 3 Jahren nicht geeignet. Erstickungsgefahr, da kleine Teile verschluckt oder eingeatmet werden können.
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4.7 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Exactly what my husband was looking for
Color: Black/Green/Digital
Works well as expected
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Reviewed in the United States on January 4, 2026
★★★★★ 4
Solid Watch 2 Months In TLDR, would buy again
Color: Black/Black/Digital
Solid watch so far with a readable face and a comfortable strap. My previous watch was a G-shock DW5600. I chose this for the lap feature and generally liked the appearance.
Things I didn’t love:
1) the chronograph displays the mode at the top. I know what mode it’s in, it would be better to have the actual time.
2) this has dual time zones, it’s apparently easy to flip to the second time zone without realizing. I have mine set to US eastern and US central (a one hour difference which begs the question why, and I hear you). But I almost missed 2 events not realizing my wristwatch had jumped back an hour while playing with my kids in the park.
3) I’m still playing with the count down timer function. I messed something up on my first run, but I’m sure I’ll figure it out. Just something didn’t work intuitively.
4) I didn’t realize how often I had used the indigo equivalent feature on my Gshock as a flash light in low light situations. With the black face this isn’t an option on this watch (I’d still make this trade for the aesthetic).
I would buy again just for something fresh after 5+ years with the G-Shock and the lap feature. Probably a little hyper critical focused on the short comings. Water resistance has been tested an no issues after two months.
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Reviewed in the United States on June 3, 2026
★★★★★ 1
Dont buy
Color: Black/Black/Digital
Worst IM watch. Cant read screen, battery only lasted 4 months, go to "try" and change battery screws to the back are special screws cant change battery. Timex should issie everyone who bought junk watch a refund!
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Reviewed in the United States on January 20, 2026
★★★★★ 5
Tough as hel
Color: Black/Black/Digital
This watch hasn’t left my wrist in 5 months and has been through hell and back.
Has all the features I’ll ever need.
Bought a second one to keep in case they discontinue it in the future.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Its ok
Color: G2856-all silver
Its a nice watch but the band feels a little cheap the adjustment tool broke on me but overall nice looking watch for the money
UPDATE: they are giving me a watch of my choice instead of a refund i really love this watch it looks amazing iv been getting compliments left and right 5/5 star's would buy again
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Reviewed in the United States on May 28, 2026