This document discusses key concepts for measuring like a scientist using the metric system. It defines important terms like unit, volume, mass, and density. It explains that the metric system is used by most countries and scientists as it is based on units of 10 for standardized measurements. The goal is to learn how to measure the volume of regular and irregular objects, as well as mass, in order to calculate density using the formula: Density = Mass / Volume.

1. Focus: How to measure like a
scientist
Do Now:

2. Tech Terms
1. unit – amount used to measure something
2. Volume (V) – how much space an object
takes up
3. Mass (M)– the amount of matter that is
inside of an object
4. Density (D)– the amount of mass that is in
every cubic centimeter

3. 5. meter (m) – basic metric unit for length or
distance
6. kilogram (kg)- basic metric unit for mass
7. Liter (L) – basic metric unit for the volume
of a liquid
8. Metric system – system of measurement
used by most countries and scientists

4. 9. weight – the measure of the pull of gravity
on an object
10.matter – anything that has mass and takes
up space

5. Density = Mass
Volume
Steps:
1. Learn to measure the volume of a
regular object
2. Learn to measure the volume of an
irregular object
3. Learn to measure mass
Divided by

6. Goal: What is the Metric
System? Lesson #2
Do Now:
Using a pencil, measure the width
of your desk.
My desk is ________ pencils
wide.
Width

7.  We used the unit “pencil” to measure our
desk or table.
 A unit is anything that we use to measure
something.
What is the problem with using the unit
“pencil” to measure?
Everyone has a different sized pencil and
everyone will have different results.

8. Once upon a time there was a very rich and
very powerful KING.

9. He needed a new carpet for his throne

10. . Why do we need a standard unit of
measurement?
- to make our measurements more exact
- to ensure that everyone has the same
results

11. I – Metric System or Systeme Internationale
(SI system)
- A system of measurement used by foreign
countries and all scientists
- Based on units of 10

12. Table 1: Basic Metric Units
Measurement Basic Metric Unit Symbol
length or distance meter m
Mass kilogram kg
Volume of a liquid Liter L
Volume of a solid
Meters cubed or
cubic meters
m3
in class we will always use
cm3
Temperature Degrees Celsius °C