Get To Know Your Lab Equipment

1. Get To Know Your Lab Equipment

2. Goggles • Special design to protect against chemical splashes. • Used to protect the eyes.

3. Eye Wash • Accidents happen. What Should you do if something gets in your eyes during a lab? • Rinse eyes for 15 minutes in running water at the eyewash station

4. Beaker • Looks like a mug with a beak. • Always has a flat bottom and a spout (“beak”) for pouring. • Beakers can measure an approximate volume in milliliters, ml. • Can also be used for heating or mixing chemicals.

5. Erlenmeyer Flask • Used for mixing and swirling liquids with less risk of spilling. • Can be used with a stopper. • Marks are for estimation only.

6. Florence (Boiling) Flask • Rounded bottom, and long neck. • It is used for boiling liquids. • Liquids can be swirled and mixed with less risk of splashing.

7. Glass Stirring Rod • Used for mixing and stirring substances. • It is made of glass to resist heat, stains and corrosion.

8. Funnel • Funnels are used to aid in pouring a liquid from a wide-mouth container to a small-mouth container; to filter substances when filter paper is used

9. Graduated Cylinder • Used to accurately measure the volume of liquid. • It has markings on the side to measure volume. • Only used for measuring and pouring liquids, never for heating or mixing.

10. How do you read a graduated cylinder? • A graduated cylinder should ALWAYS be sitting flat when you read it. That is the best way to make sure the reading is not lopsided. • Liquids will bend up the sides – so always read where the BOTTOM of the curve meets the line. • The bottom of the curve is called the “meniscus.” • How many mL of liquid are in this graduated cylinder?

11. Volumetric Pipette • Used to measure very small volumes of liquid. • It has graduation marks to help measure more precisely.

12. Pasteur Pipette(Dropper) • Used to transfer small amounts of liquid. • Can produce small drops.

13. Compound Light Microscopeor microscope • Used to view things on a microscopic level, such as cells, bacteria, and crystals. • The compound microscope has multiple lenses to magnify the image even more than a regular microscope.

14. Microscope Slide • Glass rectangle, used to hold a specimen (what you’re looking at) on a microscope. • Allows you to shine light through an object so you can see it in the microscope.

15. Thermometer • Used to measure the temperature of objects. • The metric unit for temperature is Celsius. • The Imperial unit(used in the United States) unit for temperature is Fahrenheit. • Celsius is based on water. 0°C = Freezing, 100°C = Boiling.

16. Test Tubes • Test tubes are made of glass, with one open end and one closed end. • They are used for small reactions. • Can also be used to heat a small amount of a substance (liquid/chemical). • When not being used, test tubes should be kept in a test tube rack.

17. Test Tube Rack • Rack designed specifically for holding one or more test tubes. • When working with other materials, test tubes should rest in a test tube rack.

18. Test Tube Brush & Bottle Brushes • Brushes made for cleaning the inside of test tubes or bottles. • Use the appropriate size brush for the job.

19. Bunsen Burner • Provides a controlled flame. • Used for heating, sterilization, and combustion.

20. How To Use a Ringstandhttps://www.youtube.com/watch?v=exoXJ20esM4

21. Ring Stand, Ring & Clamp • A ring stand platform holds a heating unit and the pole holds clamps. • Wire gauze is used to protect the bottom of a beaker or flask from a flame. It also helps support a beaker or flask on a ring clamp. • A ring clamp is used for holding a flask, a beaker, or a test tube of a ring stand. • A test tube clamp is used to hold an individual test tube while heating.

22. Forceps & Tongs • Forceps is the scientific name for “tweezers.” • Used to grab small things that should not be touched with your hands.

23. Test Tube Clamp • Used for holding an individual test tube. • Can be used when heating a test tube, or to move a test tube that is already hot.

24. Beaker Tongs • For removing, holding, and handling a hot beaker.

25. Ruler • Used to measure length. • Many rulers can measure in inches (Imperial Unit) or centimeters (metric unit). • A meter-stick is a ruler that is 100cm or 1m long. • Metric measurements have Latin-based names. Some Latin words are similar to Spanish. • centimeter= 1/100 of a meter • milimeter = 1/1,1000 of a meter • decimeter = 1/10 of a meter

26. Caliper • Can be used to measure more precisely than a ruler. • Calipers can measure between the large “jaws” or the small jaws can measure inside the object.

27. Triple Beam Balance • Used for measuring mass. • Mass is how much matter an object has. • Mass is the same regardless of gravity, but weight changes with gravity. • Example: On earth, a middle school student may WEIGH 85 pounds. But on the moon they would only weigh 14 pounds, because there is less gravity. However, the kid will still have 38.5kg of mass. • When the scale and beams are balanced, you can read the mass.

28. Spring Balance • Used for measuring weight or force. • A spring inside the plastic shell expands depending on how much force is pulling it.