Matter
Anything that has mass and takes up space

Measurement Standard
A unit agreed upon and used by most everybody

Distance
How for it is between 2 points

Length
Distance of something from end to end, usually the longest dimension

Width
Distance from side to side, usually a dimension shorter than the length

Meter (m)
The standard for measuring length in the metric system and science

Centimeter (cm)
Is 1/100 of a meter. It takes 100 cm to make a meter

Kilometer (km)
Is 1000 meters

Balance
A tool for finding the mass of an object

Mass
The measure of how much matter or "stuff" is in an object. Your mass never changes in the known universe.

Scale
A tool for finding the weight of an object.

Weight
Measure of gravity's pull on an object.
Change in gravity = change in weight.
Earth vs. Moon
120 Pounds on Earth
20 Pounds on Earth

Gram (g)
Standard unit of mass in the metric system.
1 gram is the mass of 1 cubic centimeter of water.

Kilogram (kg)
1000 g

Weight
120 Pounds on Earth
54.43 Kilograms on Earth & Moon
20 Pounds on Earth

Volume (V)
The three-dimensional space occupied by something. (total space)

Capacity
The volume of fluid (such as water) an object can hold when full

Liter (L)
Metric measurement standard for measuring volumes of fluids

Milliliter ( mL)
1/1000 of a liter. It takes 1000 mL to make 1 L.

Density (D)
Is a number (measurement) that compares the amount of mass a material has to a given volume.
Always has a label of g/mL

Density Formula
D = mass/volume
D = m/V

What is the density of an object that has a mass of 12 g and a volume of 24 mL?
12 g / 24 mL =

Density of water
(room temperature)
1.00 g/mL

Sink or Float
An objects Density determines if it sinks or floats in water. If your density is greater than 1.00 you will sink. Density of less than 1.00, and you float.
I’M NUMBER 1 OR 1.00

D = 1.001 g/mL

D = .99 g/mL

D = 5.01 g/mL

Lower (less) Density than Water will..
(Smaller number)

Higher (more) Density than Water will..
(Bigger number)

When comparing Density....
Less density will always float on Larger density or Small number will always float on bigger number

A = .97 g/mL vs. Y = .96 g/mL

F = 1.23 g/mL
T = .53 g/mL
H = 1.53 g/mL
K = .01 g/mL