Visualizing the Metric System

1. Visualizing the Metric System By Mrs. Kell/ Elmwood Academic Facilitator

2. Scientists all over the world use the International System of Units to measure: • Length • Volume • Mass • Density • Temperature • Time

3. What is length? • Length is the distance from one point to another

4. The basic unit of length in the metric system is the meter.

5. The two units that measure the length of smaller objects are, … • millimeter • centimeter

6. A unit that measures the length of larger objects are…. • kilometers

7. A meter is about the height from the floor to the knob on a door.

8. A centimeter is about the width of your fingernail. A millimeter is about the thickness of a dime.

9. 1 kilometer is about the combined length of 9 football fields.

10. Question: About how many centimeters is the width of your paper?

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20. Length Reading a metric ruler…..

21. The longer lines on the metric ruler are called… • centimeters

22. The shorter lines on the metric ruler are called… • millimeters

23. One centimeter is divided into how many millimeters? • 10 millimeters (mm)

24. Calculating: Measure the turtle in figure 2 from the rear of its shell to the tip of its nose. Record its length in both centimeters and millimeters. • 10.5 cm • 105 mm

25. Volume

26. Volume • The amount of space an object takes up

27. Volume Volume of Liquids

28. When measuring the volume of a liquid, scientists use a unit known as the… • Liter (L).

29. To measure the volume of smaller liquids, the _________ is used. • Milliliter (mL)

30. Larger liquids are measured in kiloliters.

31. A liter is the size of a coke bottle.

32. 1 milliliter equals 1/1000 of a liter… In other words it would take about 1,000 die to fill up a liter bottle…. 1,000 of these =

33. A kiloliter is equivalent to 8 large trash cans.

34. The instrument used to measure the volume of liquids is called the… • Graduated cylinder.

35. This instrument has markings that are in increments of… • 1 milliliter (mL)

40. The metric unit known for measuring solids with a larger volume is known as the… • Cubic meter (m³).

41. The formula for calculating the volume of a rectangular object is: Volume = Length x Width x Height

42. Why is the unit cm³ used when calculating the volume of a rectangular object? • When multiplying the object’s length, width and height, the cm units are also multiplied cm x cm x cm = cm³

43. Suppose a cereal box is 10 centimeters long, 4 centimeters wide, and 20 centimeters high. What would be the volume of the box? Volume = Length x Width x Height Volume = 10 cm x 4 cm x 20 cm Volume = 800 cm³

44. Mass

45. Mass • The measure of the amount of matter an object contains • Matter: The material that all objects and substances are made up of • Anything that has mass and takes up space is matter

46. A balance is used to measure mass. Beams Pan Riders Pointer

47. Mass Units of Mass

48. The gram (g) is the basic metric unit of mass. Two other metric units of mass are:milligram (mg)kilogram (kg)

49. A smaller object’s mass such as a paper clip would be measured inmilligrams.

50. A gram is about the mass of a jelly bean