Hauv chav kuaj, ntau lub khob ntim khoom yog qhov tseem ceeb rau kev sim, khaws cov tshuaj, thiab tuav cov qauv. Cov thawv no yog tsim los tiv thaiv cov tshuaj tiv thaiv sib txawv, qhov kub thiab txias, thiab cov txheej txheem tuav. Hauv qab no yog ib co ntawm cov feem ntau siv iav ntim nyob rau hauv lub labs, nrog rau lawv cov yam ntxwv thiab kev siv: 1. Beakers 2. Flasks 3. Test Tubes