1. Mass Matters S-5-3-1_Mass Matters PPT Image Source: 
S-5-3-1_Mass Matters PPT

2. Mass is the amount of matter in an object.
Can you think of three things that have mass?

3. English vs. Metric Units
Which of these are metric units for mass?
Pound
Kilogram
Ounce
Gram
Milligram

4. Mass vs. Weight Units Mass Units Weight Units Milligrams (mg)
Ounce (oz)
Centigrams (cg)
Pound (lb)
Decigrams (dg)
Ton
Grams (g)
Dekagrams (dag)
Hectograms (hg)
Kilograms (kg)

5. Metric Units The standard metric unit for mass is the kilogram.
Kilograms are represented by the symbol kg.
Kilograms = kg
Grams = g
Milligrams = mg

6. Which of these has more mass?
Metric Units
1 kilogram = 1000 grams
1 gram = 1000 milligrams
1 kilogram = ??? milligrams
Which of these has more mass?
a. 1 kg or 1600 g
b. 800 mg or 1 g

7. Source: www.botany.hawaii.edu/nlc_biology/1408/meas/slide8.jpg

8. What is the mass of the object measured in the picture below
What is the mass of the object measured in the picture below?   ________ + ________ + ________ = ________ grams
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