Do Now:

Opening

• Measure the width of your desk. How many hands does it take?

Measurement• Why should the U.S. change to the metric

system? Or not?

MeasurementThe Mars Climate Orbiter (MCO)

In one of the all time great engineering mistakes, NASA’s partner, Lockheed Martin, used English Standard units, not the metric units used by NASA. The probe eventually hit the Martian atmosphere at the wrong angle and burned up.

The metric system is based on 10!

SI UNIT PREFIXES

Base milli micro nanogiga kilomega

M kG m μ n

hecto (h)

deka (da)

deci (d)

centi (c)

Common Bases Include:g = grams

m = metersL = liters

s = secondsºC = degrees Celsius

Metric Measurement:

I. Almost all science uses the Metric System. a. This system is based on multiples of 10.

Metric Measurement:I. Almost all science uses the Metric System.

a. This system is based on multiples of 10.II. Length is measured in meters, decimeters, centimeters, and

millimeters.a. One mm thickness of your fingernail ≅b. One cm width of your pinky finger≅c. One dm width of your palm ≅d. One m height of a doorknob≅

III. Mass is measured in grams, decigrams, milligrams, etc.a. One gram one paper clip≅b. One milligram 1/1000 of a paperclip≅

Metric Measurement:I. Almost all science uses the Metric System.

a. This system is based on multiples of 10.II. Length is measured in meters, decimeters, centimeters, and

millimeters.a. One mm thickness of your fingernail ≅b. One cm width of your pinky finger≅c. One dm width of your palm ≅d. One m height of a doorknob≅

III. Mass is measured in grams, decigrams, milligrams, etc.a. One gram one paper clip≅b. One milligram 1/1000 of a paperclip≅

Metric Measurement:I. Almost all science uses the Metric System.

a. This system is based on multiples of 10.II. Length is measured in meters, decimeters, centimeters, and

millimeters.a. One mm thickness of your fingernail ≅b. One cm width of your pinky finger≅c. One dm width of your palm ≅d. One m height of a doorknob≅

III. Mass is measured in grams, decigrams, milligrams, etc.a. One gram one paper clip≅b. One milligram 1/1000 of a paperclip≅

Practice! How long is the red box (nearest 0.1 cm)?

Exit Ticket #1: How long is the blue box (nearest 0.1 cm)?

Practice! How long is the blue box (nearest mm)?

Exit Ticket #2: How long is the blue box (nearest mm)?

Metric Measurement:I. Almost all science uses the Metric System.

a. This system is based on multiples of 10.II. Length is measured in meters, decimeters, centimeters, and

millimeters.a. One mm thickness of your fingernail ≅b. One cm width of your pinky finger≅c. One dm width of your palm ≅d. One m height of a doorknob≅

III. Mass is measured in grams, decigrams, milligrams, etc.a. One gram one paper clip≅b. One milligram 1/1000 of a paperclip≅

Measurement Tools

Name: Triple Beam BalanceMeasurement: Determine the mass Units: grams (g)

*Important Reminder!• A triple beam balance has three separate lines

(it’s like adding three rulers together)-you must ADD each of the lines together!

Scientific NamesI. Scientific names are given to species so that all

scientists can communicate.a. It has two words: a genus name and a species name b. The first letter of the genus name is capitalized, and the species is lowercase. c. If you’re typing, you write the scientific name in italics d. Your scientific name is Homo sapiens.

Scientific NamesI. Scientific names are given to species so that all

scientists can communicate.a. It has two words: a genus name and a species name b. The first letter of the genus name is capitalized, and the species is lowercase. c. If you’re typing, you write the scientific name in italics d. Your scientific name is Homo sapiens.

Scientific NamesI. Scientific names are given to species so that all

scientists can communicate.a. It has two words: a genus name and a species name b. The first letter of the genus name is capitalized, and the species is lowercase. c. If you’re typing, you write the scientific name in italics d. Your scientific name is Homo sapiens.

Scientific Names Practice!1. Portabella mushrooms

1. Genus: Agaricus2. Species: bisporus3. Scientific Name: Agaricus bisporus

Scientific Names Practice!1. Portabella mushrooms

1. Genus: Agaricus2. Species: bisporus3. Scientific Name: Agaricus bisporus

Scientific Names Exit Ticket!Exit Ticket #3: Navajo Tea

1. Genus: Thelesperma2. Species: megapotamicum

What is the scientific name?

Exit Ticket #4

• A mountain lion is classified as genus, Puma, and species, concolor. Write the scientific name of a mountain lion.

Write Cue words and a summary for your notes.

• Can you answer the key question in your summary?

• How can scientists communicate with each other, if they don’t speak the same language?