# Topic : M easurement Aim : How can we measure mass and temperature? - PowerPoint PPT Presentation

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Topic : M easurement Aim : How can we measure mass and temperature? Do Now : Scientific Method questions (Hand in Lab Safety Activity) HW:. 9 cm. 8 cm. 10 cm. V = L x W x H. V = 10cm x 8cm x 9cm. V = 720 cm 3. Example:. V = 20 –11.5 V = 8.5 mL. V1 =11.5 mL. V2 = 20 mL.

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Topic : M easurement Aim : How can we measure mass and temperature?

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#### Presentation Transcript

Topic: Measurement

Aim: How can we measure mass and temperature?

Do Now: Scientific Method questions

(Hand in Lab Safety Activity)

HW:

9 cm

8 cm

10 cm

V = L x W x H

V = 10cm x 8cm x 9cm

V = 720 cm3

Example:

V = 20 –11.5

V = 8.5 mL

V1 =11.5 mL

V2 = 20 mL

Amount of matter in an object

Grams (g)

TRIPLE BEAM BALANCE

Mass

http://www.ohaus.com/input/tutorials/tbb/TBBins.html

Mass = 542 gm

172 g

http://www.wisc-online.com/objects/ViewObject.aspx?ID=gch202

Measures temperature

Tube filled with a fluid such as alcohol

Thermometer

Fahrenheit Scale: Non-metric temp scale

2 scales used to measure temperature

°F

Water freezes = 32°F

Water boils = 212°F

Human body temp = 98.6°F

2.Celsius Scale: Metric scale

°C

Water freezes = 0°C

Water boils = 100°C

Human body temp = 37°C

### Measuring with a thermometer

24°C

Let’s summarize…

What is the name of the instrument used to measure mass?

Identify the units used to measure mass.

What instrument is used to measure temperature?

Identify the two temperature scales used. Explain the difference between the two scales.

Mass = 137.4 gm

Mass = 25.4 gm

Mass = 79.4 gm

Review:

1. Which piece of laboratory equipment would be used to obtain the most accurate measure of the volume of a glucose solution?

triple beam balance

beaker

metric ruler

2. Which piece of equipment could be used to determine the mass of a frog?

triple beam balance

beaker

metric ruler

3. Mass is best defined as the

size of an object

density of an object

amount of matter in an object

weight of an object

4. The amount of space an object takes up is known as its

mass

density

volume

matter

5. The units for the volume of a solid is

mL

mm

L

cm3

6. The basic unit of volume in the metric system is the

kilogram

gallon

liter

mass

7. The basic unit of mass in the metric system is the

kilogram

gallon

liter

meter

8. To measure the volume of an irregular solid, a student can use

a triple beam balance

a beaker