@earthscience92

Scientific Measurement & Metric Conversion

ES Intro Unit

What is Measurement?• A description that

includes a number and a unit.– Used to describe an

observation.• What does it mean to

make observations?

I will be able to describe what measurement is and the basic units of measurement.

Why do we use standard units of measurement?• Metric System– Scientists needed units of

measurement to be standardized to:• Allow people around the

world to share data.– Improving accuracy

• To repeat another’s experiments.

I will be able to describe what measurement is and the basic units of measurement.

What is the International System (SI) of Units?• Measurement system

devised by the French.– Metric system is called the SI

system.• The language for all scientific

measurement.• Five of the Seven base SI

units used to express:– Length (m = meter)– Mass – Time – Temperature – Volume

I will be able to describe / use the different tools units of measurement used for science.

SI

mL

sg

°C

Ng/ml

What are the basic Units of Measurement?• 3 Basic Units of

Measurement– Length (distance)

• m (meter)

– Mass• g (gram)

– Volume• L – Liter

I will be able to describe what measurement is and the basic units of measurement.

How can we make very large or small measurements easy to work with?

• Uses prefixes or scientific notation to make it less confusing to work with very big or very small numbers.– Prefix- one ore more

letters or syllables added to the beginning of a word to change its meaning.

I will be able to convert units of metric measurement using prefixes.

kilo khecto hdeca da

Base Unit (m) (L) (g)deci dcenti cmilli m

How can we make very large or small measurements easy to work with?

I will be able to convert units of metric measurement using prefixes.

How can we make very large or small measurements easy to work with?

I will be able to convert units of metric measurement using prefixes.

37.68 m0.03768 km 37,680 mm