On page 10 of your notebook, predict how
the layers will form. Which one will go at the
bottom? Which one will go on top?
DENSITY is the amount of
MASS contained in a given
VOLUME of some
material.
The following boxes are the same volume. Assume all the balls have
Equal mass.
Which box is more dense?
The following boxes are the same volume. Assume all the balls have
Equal mass.
The box on the LEFT has GREATER DENSITY than the box on the
right because is has MORE MASS IN THE SAME VOLUME
DENSITY is the ratio of an
object’s
MASS to its
VOLUME.
Calculating density with known mass and
volume:
determine the density of a material that has
a mass of 36g and volume of 2.5 cm3.
Calculating volume with known mass and
density:
find the volume of 50g of olive oil if the
density of olive oil is 0.80g/mL.
Measurement Activity
Reading Lab Equipment
Measuring Volume
We
will
be
using
graduated cylinders to
find the volume of liquids
and other objects.
Read the measurement based on
the bottom of the meniscus or
curve. When using a real
cylinder, make sure you are eyelevel with the level of the water.
What is the volume of water in
the cylinder? 43 mL
Measuring Solid Volume
9 cm
We can measure the volume of regular object
using the formula length x width x height.
9cm X 10 cm X 8cm = 720cm3
8 cm
10 cm
We can measure the volume of
irregular object using water displacement.
Amount of H2O with object = 200mL
About of H2O without object = 260mL
Difference = Volume = 60mL
Measuring Temperature
Measurement of the
average KINETIC
ENERGY of the
particles of an object
What is the temperature?
Thermometer A: ___4°C____
Thermometer B: _____48°F_____
Units of temperature:
Kelvin (K)
Degrees Celsius (°C)
Degrees Farenheit (°F)
Measuring Length
What is the length of the line in
centimeters? 3.3cm
Measuring Mass
We will be using triple-beam balances
to find the mass of various objects.
The objects are placed on the scale and
then you move the weights on the beams
until you get the lines on the right-side of
the scale to match up.
Once you have balanced the scale, you add up the amounts on each
beam to find the total mass.
What would be the mass of the object measured in the picture?
300 g + 30g + 5.3g = 335.3g