METRIC SYSTEMMETRIC SYSTEM

METRIC SYSTEMMETRIC SYSTEM What is the metric What is the metric

system?system? A system used to A system used to

measure length, measure length, mass volume and mass volume and temperature all temperature all over the world.over the world.

It is used by It is used by scientists even in scientists even in the USA.the USA.

LengthLength How does one How does one

measure length in measure length in the metric system?the metric system?

What instrument What instrument do we use to do we use to measure length?measure length?

What is the base What is the base unit for length in unit for length in the metric system?the metric system?

Using meters or Using meters or variations of a meter.variations of a meter.

We use the meter We use the meter stickstick

The base unit is the The base unit is the metermeter. There are . There are also smaller units also smaller units such as cm, mm, and such as cm, mm, and larger like km.larger like km.

VolumeVolume

What is volume?What is volume?

What is the base unit What is the base unit for volume in the for volume in the metric system?metric system?

Volume is the Volume is the amount of space amount of space an object takes up.an object takes up.

The base unit for The base unit for volume is the volume is the liter. liter. We can also use We can also use milliliters (mL) in milliliters (mL) in science class.science class.

VOLUMEVOLUME How do you find How do you find

the volume of a the volume of a regular shaped regular shaped object?object?

Multiply the length by Multiply the length by the width, and by the the width, and by the height of the object.height of the object.

Use cmUse cm3 3 as your units as your units of measurement.of measurement.

1 cm1 cm3 3 is equal to 1mLis equal to 1mL Example: 10cm x Example: 10cm x

5cm x 3 cm = 5cm x 3 cm = 150cm150cm33

VOLUMEVOLUME How do you find How do you find

the volume of an the volume of an irregular shaped irregular shaped object?object?

Use displacement Use displacement (displace water)(displace water)

Steps (in mL)Steps (in mL) 1. Place a known 1. Place a known

amount of water in a amount of water in a beakerbeaker

2. Put the object in the 2. Put the object in the beaker and record how beaker and record how much the water went up.much the water went up.

3. Subtract the original 3. Subtract the original amount of water from amount of water from the new.the new.

VOLUMEVOLUME What instruments What instruments

do we use to do we use to measure volume measure volume with?with?

The beakerThe beaker

The graduated The graduated cylinder cylinder (most accurate)(most accurate)

The flaskThe flask

Beaker, Graduated cylinder and Beaker, Graduated cylinder and FlaskFlask

MASSMASS What is massWhat is mass Mass is the amount Mass is the amount

of matter (stuff) in of matter (stuff) in an object.an object.

The base unit for The base unit for mass in the metric mass in the metric system is the system is the gramgram..

We use the triple We use the triple beam balance to beam balance to measure mass.measure mass.

Don’t confuse mass with weightDon’t confuse mass with weight

Mass is a Mass is a property of an property of an object and object and does not does not depend on the depend on the object’s object’s location.location.

Weight is a Weight is a measure of the measure of the force of gravity force of gravity acting on an acting on an object, and object, and therefore can therefore can vary depending vary depending on the object’s on the object’s location. location.

For example, your body has the For example, your body has the same mass on Earth as it does on the same mass on Earth as it does on the moon, but you weigh about six times moon, but you weigh about six times more on Earth than you would on the more on Earth than you would on the moon. moon.

TemperatureTemperature

What is What is temperature? temperature?

Measure of Measure of the average the average kinetic kinetic energy of the energy of the particles in a particles in a substance.substance.

TemperatureTemperature

What is the What is the base unit for base unit for temperature temperature in the metric in the metric system?system?

What tool do we What tool do we use to use to measure measure temperature?temperature?

Degress Degress CelsiusCelsius

ThermometerThermometer

DENSITYDENSITY What is density?What is density?

What is the formula What is the formula for finding density?for finding density?

What are the units What are the units for finding density?for finding density?

Density measures Density measures how close together how close together the molecules of an the molecules of an object are.object are.

Take the mass and Take the mass and divide it by the divide it by the volume. M/Vvolume. M/V

The units are g/mL The units are g/mL

HOW TO FIND DENSITYHOW TO FIND DENSITY How would I find How would I find

the density of an the density of an apple?apple?

1. Find the mass 1. Find the mass on the triple beam on the triple beam balance. (g)balance. (g)

2. Find the volume 2. Find the volume using using displacement. (mL)displacement. (mL)

3. Divide the mass 3. Divide the mass by the volume. by the volume. g/mLg/mL

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