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COMMON MEASUREMENT TOOLS USED IN THE BIOLOGY LAB

COMMON MEASUREMENT TOOLS USED IN THE BIOLOGY LAB. Graduated Cylinder. This tool is used to measure the VOLUME of a liquid. The proper way to read this tool is at EYE LEVEL at the bottom of the MENISCUS, which is the curved surface of the liquid.

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COMMON MEASUREMENT TOOLS USED IN THE BIOLOGY LAB

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  1. COMMON MEASUREMENT TOOLS USED IN THE BIOLOGY LAB

  2. Graduated Cylinder This tool is used to measure the VOLUME of a liquid. The proper way to read this tool is at EYE LEVEL at the bottom of the MENISCUS, which is the curved surface of the liquid.

  3. What is the curved surface of the liquid called in a graduated cylinder? MENISCUS

  4. What is the volume of the rock? 1) 7 mL 2) 38 mL 3) 33 mL 4) 20 mL 5) 20 mL

  5. METRIC RULER Metric rulers are used to measure length, width, and height. The LARGE numbers on the ruler are CENTIMETERS. The small lines between the centimeter marks are called MILLIMETERS. There are TEN (10) millimeters in a centimeter.

  6. What do the NUMBERED lines on a metric ruler represent? CENTIMETERS What do the SMALL lines between the numbered marks represent? MILLIMETERS How many millimeters in a one (1) centimeter? 10 mm

  7. What is the length of the screw in centimeters?In millimeters? 5.1 centimeters (5.1 cm) 5.1 cm X 10 = 51 millimeters (51 mm)

  8. Celsius Thermometer Thermometers are used to measure TEMPERATURE. Since scientists use the METRIC SYSTEM, they use thermometers that measure degrees Celsius rather than degrees Fahrenheit.

  9. What is the temperature in degrees Celsius? 17degrees C

  10. ELECTRONIC BALANCE An electronic balance is used to measure the MASS of an object. It is a more PRECISE tool than a triple beam balance because it can record mass to the hundreth of a GRAM.

  11. Record the mass of the items. To the nearest WHOLE number: 45 grams (45 g) To the nearest tenth: 45.2 grams (45.2 g)

  12. Safety Tools Used in the Biology Lab GOGGLES – Protect Eyes 2.GLOVES – Protect Skin 3. APRON – Protect Clothes

  13. Safety Tools Used in the Biology Lab TEST TUBE RACK Used to support test tubes during experiments TEST TUBE HOLDER Used to hold hot test tubes or while heating a test tube over a flame

  14. Safety Tools Used in the Biology Lab TONGS – Used to safely handle hot beakers SAFETY SHOWER – To wash chemicals off if they splash on skin EYE WASH STATION – To flush eyes

  15. Glassware & Other Tools Used in the Biology Lab BEAKER – Used to transfer and/or mix larger volumes of liquid FLASK – Formixing and heating liquids; Narrow neck helps prevent splashing

  16. Glassware & Other Tools Used in the Biology Lab TEST TUBES STOPPERS (corks) TEST TUBE RACK

  17. Glassware & Other Tools Used in the Biology Lab EYE DROPPER (PIPETTE) – Used to transfer very small amounts of liquid TEST TUBE

  18. Glassware & Other Tools Used in the Biology Lab ------- HOT WATER BATH – A way to safely heat chemicals in test tubes NOTE: Test tubes should NEVER be stoppered while being heated ------BUNSEN BURNER – Used to heat things over a flame

  19. Glassware & Other Tools Used in the Biology Lab CHEMICAL INDICATORS are used to test materials for the presence of various substances such as: * GLUCOSE (Benedicts) * STARCH (Iodine) * ACID (Blue Litmus Paper) * BASE (Red Litmus Paper)

  20. RULER Dissecting Tools Used in the Biology Lab Dissecting Kit FORCEPS PIPETTE PROBES SCISSORS SCALPEL

  21. Dissecting Pan

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