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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
slide24
An even smaller unit is a millimeter (mm).
  • The prefix “milli-” means 1/1000, so…
    • 1000 mm = 1 m
    • 10 mm = 1 cm
slide25
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
slide28
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

km

Length of your eyelash

mm

Distance from A306 to the office

m

Length of your arm

cm

Height of this building

m

Length of a grain of salt

m

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.