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The ABC’s of Science. Day 1: Intro to Physical Science Metric Introduction Metrics: Length. What is Physical Science?. Physical science is the study of matter and energy . The universe is composed of matter. Your body, this paper, and your desk are matter.

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the abc s of science

The ABC’s of Science

Day 1: Intro to Physical Science

Metric Introduction

Metrics: Length

what is physical science
What is Physical Science?
  • Physical science is the study of matter and energy.
  • The universe is composed of matter.
  • Your body, this paper, and your desk are matter.
  • In physical science, you will learn the properties of metals, water, air, and many other kinds of matter.
what are we learning this year
What are we learning this year?
  • We will be looking at 3 different areas of physical science:
    • Chemistry
    • Physics
    • Space Science
why do i have to know this stuff
Why do I have to know this stuff?
  • Imagine humans when they first had fire, when they first made wheels, when they first established where they were going by looking at the stars.
  • How did the things we consider basic - heat, light, navigation, transportation, entertainment - ever come to be?
  • The answers all touch on physics and chemistry.
  • Chemistry tells us how to make things and what things are made of.
  • Physics tells us how and why things move.
the abc s of science1
The ABC’s of Science
  • Before we start with Chemistry, we need to cover a few basic, but very important, areas of science.
  • I call them the ABC’s.
  • In other words, without the ABC’s, nothing makes sense.
what are the abc s of science
What are the ABC’s of Science?
  • The Metric System
  • Safety
  • The Scientific Method
let s talk metric
Let’s talk Metric
  • Here in America we use ye olde English system: foot, yard, and mile.
  • However, MOST countries use another system called the International System of Units or the SIsystem(which stands for Système Internationale d’Unités)
  • This is the modern form of the metric system.
it all depends on the foot
It all depends on the foot!
  • Numbers and units are used to make measurements.
  • The distance from your desk to my desk could be 25 shoe lengths or 30 shoe lengths.
  • It depends on how big the shoe is.
  • Think of Shaq’s foot versus Mini-Me.
it all depends on the foot1
It all depends on the foot!
  • In order to measure accurately, we have to use standard units.
  • In other words, everyone has to use the SAME system or units.
  • Otherwise, it just gets confusing.
  • A standardis a fixed quantity used by everyone when measuring.
advantages to the metric system
Advantages to the Metric System

There are two advantages to using the metric system:

  • It helps scientists share & compare their results & observations.
    • If I conducted an experiment here in America, even a scientist in Zimbabwe would be able to understand my measurements.
  • All units are based on the number 10.
    • Changing from one unit to another is easy!
math terpiece theater
Math-terpiece Theater

BrainPop: Metric vs. Customary

still confused
Still Confused???
  • OK, let’s get this as simple as we can.
  • We are going to look at all of our metric measurement units as two-part words.
  • The first part is the PREFIX.
  • The second part is the type of UNIT.
part 1 the prefix
Part 1: the PREFIX
  • Here are the main prefixes
  • You need to memorize these, since you will see them for the rest of your life!
part 2 the unit
Part 2: the UNIT

Here are some of the most important units, and you need to memorize these too.

try this
Try this…
  • 1 kilometer is equal to _1000___ meters.
    • kilo-meter
      • prefix = kilo or 1000
      • unit = meter, measuring distance
    • Therefore: 1 kilometer = 1000 meters.
  • 5 kilometers is equal to _______ meters
    • 5 x 1000 meters = 5,000 meters
  • 10 kilometers is equal to _______ meters
    • 10 x 1000 meters = 10,000 meters
  • Later, we’ll practice converting from one to another.
try this1
Try this…

What unit would you use to measure each of the following?

  • Water in a bottle
    • Liter
  • The distance from my classroom to the bathroom
    • Meter
  • The amount of heat in the classroom?
    • Kelvin or Celsius
  • How much matter is in a paperclip
    • Gram
metric system length
Metric System: Length
  • The meter (m) is the SI unit of length.
    • A meter is about the distance from a doorknob to the floor.
    • A driver golf club is also about a meter in length.
  • The meter is divided into 100 equal parts called centimeters (cm).
  • There are 100 centimeters in a meter:
    • 100 cm = 1 m
An even smaller unit is a millimeter (mm).
  • The prefix “milli-” means 1/1000, so…
    • 1000 mm = 1 m
    • 10 mm = 1 cm
Long distances are measured in kilometers (km).
  • In the US, we measure speed by miles per hour (mph). In most other countries, they measure in kilometers per hour (km/h).
you try it
You try it!
  • Name 3 things that are about one meter long.
    • Golf Club, Chair, Flag, 6th graders…
  • Name 3 things that are measured in centimeters
    • Paperclips, babies, toes, fingernail
  • Name 3 things that are small enough to be measured in millimeters
    • Camera film, pencil lead, wire diameter, insects
You Try It! Arrows A, B, & C are all pointing to a particular place on a meter stick. Name the value & include units.
  • Point A = 49.4 cm or 494 mm
  • Point B = 50.5 cm or 505 mm
  • Point C = 52.0 cm or 520 mm
you try it what is the most appropriate unit for a scientist to use to measure the following
Distance from San Diego to New York


Length of your eyelash


Distance from A306 to the office


Length of your arm


Height of this building


Length of a grain of salt


You try it!What is the most appropriate unit for a scientist to use to measure the following?
you try it practice measuring
You try it! Practice Measuring
  • Measure the length of this paper in cm & mm.

_______ cm & _______ mm

  • Draw a square with sides measuring 11cm.
  • Measure the height of your desk from the floor to the top in meters & centimeters.

_______ cm & _______ m

  • Measure the length of your desk in meters & cm.

_______ cm & _______ m

smile lab time
Smile Lab Time!
  • Today you’re going to measure your smile with a piece of string, and then tape that string to your table’s paper.
  • When your table has completed the measurements & taping come up front to record what the measurements were, so that your classmates can record those lengths.
  • Be sure to complete the graph & conclusion of your lab.
  • EVERYONE needs to complete a lab write up.