Equipment/Measurement

1. Equipment/Measurement Unit 1 – Intro to Biology

2. Lab Equipment Review Unit 1 – Intro to Science

3. Lab Equipment Review • Graduated Cylinder • Used to measure volume. • Beaker • Holds liquids

4. Lab Equipment Review • Flask • glassware used in making, heating and storing solutions. • Metric Ruler • Used to measure length

5. Lab Equipment Review • Thermometer • Used to measure temperature, can be alcohol or mercury. • Petri Dish • Covered dish, used to grow/culture bacteria.

6. Lab Equipment Review • Electronic Balance • Electronic device used to find the mass of an object. • Hot Plate • Heats substances using electricity.

7. Lab Equipment Review • Filter Paper • Filters out/separates solid substances from liquids. • Forceps • Used to hold or pick up small objects.

8. Lab Equipment Review • Dissecting Pins • Used during the dissection process to keep specimen parts in place. • Dissecting Tray • Used to hold/contain specimen during dissection.

9. Lab Equipment Review • Goggles • Protects your eyes. • Apron • A garment worn to protect your clothing.

10. Lab Equipment Review • Scissors • used to cut materials. • Microscope related material will be covered in a separate lecture.

11. Measurement Unit 1 – Intro to Science

12. The Metric System • The basic unit of length in the metric system in the meter and is represented by a lowercase m. • Metric Units • 1 Kilometer (km) • 1000 meters • 1 Meter • 100 Centimeters (cm) • 1 Centimeter • 10 Millimeters (mm)

13. 1 centimeter = 10 millimeters What is the length of the line in centimeters? _______cm What is the length of the line in millimeters? _______mm HINT: Round to the nearest tenth. Measuring Length How many millimeters are in 1 centimeter? Ruler: http://www.k12math.com/math-concepts/measurement/ruler-cm.jpg

14. The Metric System • Mass refers to the amount of matter in an object. • The base unit of mass in the metric system in the gram and is represented by g . • Metric Units • 1 Kilogram (kg) • 1000 Grams (g) • 1 Gram (g) • 1000 Milligrams (mg)

15. The Metric System • Volume is the amount of space an object takes up. • The base unit of volume in the metric system in the L and is represented by L or l . • Metric units • 1 liter (L) • 1000 milliliters (mL)

16. Measuring We will be using a graduated cylinder to find the volume of liquids and other objects. Read the measurement based on the bottom of the meniscus or curve. When using a real cylinder, make sure you are eye-level with the level of the water. What is the volume of water in the cylinder? _____mL meniscus

17. Measuring Volume What is the volume of water in each cylinder? Images created at http://www.standards.dfes.gov.uk/primaryframework/downloads/SWF/measuring_cylinder.swf A B C Pay attention to the scales for each cylinder.

18. 9 cm 8 cm 10 cm We can measure the volume of irregular object using water displacement . Amount of H2O with object = ______About of H2O without object = ______Difference = Volume = ______ http://resources.edb.gov.hk/~s1sci/R_S1Science/sp/en/syllabus/unit14/new/testingmain1.htm Measuring Volume We can measure the volume of regular object using the formula length x width x height. _____ X _____ X _____ = _____

19. Conversion Practice Try these conversions using the ladder method. 1000 mg = _______ g 1 L = _______ mL 160 cm = _______ mm 14 km = _______ m 109 g = _______ kg 250 m = _______ km

20. Metric Conversion Write the correct abbreviation for each metric unit. 1) Kilogram _____ 4) Milliliter _____ 7) Kilometer _____ 2) Meter _____ 5) Millimeter _____ 8) Centimeter _____ 3) Gram _____ 6) Liter _____ 9) Milligram _____ Try these conversions, using the ladder method. 10) 2000 mg = _______ g 15) 5 L = _______ mL 20) 16 cm = _______ mm 11) 104 km = _______ m 16) 198 g = _______ kg 21) 2500 m = _______ km 12) 480 cm = _____ m 17) 75 mL = _____ L 22) 65 g = _____ mg 13) 5.6 kg = _____ g 18) 50 cm = _____ m 23) 6.3 cm = _____ mm 14) 8 mm = _____ cm 19) 5.6 m = _____ cm 24) 120 mg = _____ g