8th Grade Science

8th Grade Science Being a Scientist Lab Safety: It is integral that you exercise proper lab safety when working in the laboratory. Be sure that you always do the following… ● Read instructions and guidelines beforehand ● Do only experiments that are authorized by the teacher ● Notify the teacher if a mistake has been made or something unsafe has occurred ● Follow the procedures and instructions exactly as they’re written ● Wear the appropriate protective gear at all times necessary ● Locate the fire extinguisher, fire blanket, body shower, eyewash station, and first aid kit when first entering a lab Lab Equipment: Different types of lab equipment are used depending on the circumstances. It is good to know what each tool is and what it does. ❖ A beaker is a glass container used to mix and heat chemicals. it should never be used to measure exact volumes because its tick marks signifying amounts are not completely accurate. ❖ A graduated cylinder is a glass container that accurately measures volumes of liquids ❖ A test tube is a narrow glass container used to mix, heat, and store chemicals ➢ A test tube holder is an object used to transport and store test tubes ➢ A test tube rack is a wood, metal, or plastic object used for holding test tubes upright when they have chemicals in them or upside down when they are drying ❖ An Erlenmeyer flask is a conical glass container used to mix, heat, and store chemicals ❖ A wash bottle is a plastic container used to store and dispense distilled water ❖ A rubber stopper is used to prevent chemicals from leaking out of a glass container ❖ A cork is used to prevent chemicals from leaking out of a glass container ❖ A dropper is used to transport and dispense small quantities of liquids ❖ A micropipette is used to transport and dispense minuscule quantities of liquids ❖ A ring stand is a metal structure that holds glassware in place ❖ A file is a tool used to file angles, grooves, and corners of an object ❖ Forceps or tweezers are stainless steel tools used to pick up small pieces of specimen ❖ Tongs are stainless steel tools used to pick up objects that are too hot to touch with your hands ❖ A scoopula is a tool used to scoop chemicals up and transfer them to a different spot ❖ A mortar is a thick, ceramic bowl in which chemicals are grinded using a pestle, a heavy, ceramic blunt-ended cylinder ❖ A funnel is a conical tool used to control the transfer of liquids to prevent potential spills ❖ A utility clamp is a tool used to hold materials steady on a ring stand ❖ An iron ring is an attachment to a ring stand that helps hold glassware or other equipment above a surface, wire gauze is typically placed on the iron ring as support ❖ Wire gauze is a metal mesh screen that supports beakers and flasks when they are being heated ❖ A wire brush is a tool of different sizes with coarse bristles used to clean glassware and other equipment ❖ An evaporating dish is a dish used to evaporate liquids from a small amount of solution ❖ A watch glass is a circular dish used to evaporate liquids, hold small solids, or cover beakers to prevent anything from falling into them ❖ A thermometer is a device used to measure temperature ❖ A bunsen burner is a device used to heat chemicals in flasks or beakers on open flames ❖ A triple-beam balance is a device used to measure the mass ❖ A hot plate is a device used to heat chemicals in flasks or beakers, not on an open flame