1. Section 3.7 – Using the Metric System pages 156 - 161

3. Liter; several quart bottles of water would fill a birdbath. Choosing an Appropriate Unit Choose an appropriate metric unit. Explain your choice. 1.height of a classroom chalkboard Meter; the height of a chalkboard is about twice the distance from the floor to a doorknob. 2. mass of a backpack filled with books Kilogram; the mass of a backpack filled with books is many times the mass of your textbook. 3. capacity of a birdbath

4. 100 g; the mass is about the same as a box of paper clips. Estimating With Metric Units Estimation Choose a reasonable estimate. Explain your choice. 1. capacity of a juice box: 200 mL or 200 L 200 mL; the juice box holds less than a quart of milk. 2. length of a new pencil: 15 cm or 15 m 15 cm; the length of a pencil would be about 15 widths of a thumbnail. 3. mass of a small tube of toothpaste: 100 g or 100 kg

5. The metric system uses a decimal system to relate different units to each other. Look at the metric-units chart below. The units highlighted in yellow are the units most often used. From left to right, each unit is 10 times the size of the unit before it.

6. You can convert from one unit to another by multiplying or dividing by 10; 100; 1,000; and so on.

7. To convert from one unit to another in the metric system, find the relationship between the two units. Remember: Multiply if you are going from a larger unit to a smaller unit since there will be more of the smaller units. Divide if you are going from a smaller unit to a larger unit since there will be fewer of the larger units.

8. Converting Between Metric Units Mental Math Complete each statement. 1.4.35 L = mL 2.914 cm = m

9. Real-World Problem Solving Geography The ancient Incan city of Machu Picchu is located in Peru. Its altitude is about 2,300 m above sea level. What is Machu Picchu's altitude in kilometers? Machu Picchu is about 2.3 km above sea level.

10. Homework pages 159 - 160 #s 1-20, 33-46 –write problems and answers, EXCEPT for word problems and multiple-choice problems –SHOW ALL WORK! –failure to write problems and/or show work will result in either receiving partial or no credit