matter and properties
Name the three different states of matter.
Solids, liquids and gases.
How can one measure the mass of a solid object?
by weighing it on a scale.
Is the resistant to being scratched.
hardness
only contain one type of substance.
properties of matter.
mass and volume.
How can one measure the volume of a solid object?
by putting it in liquid in a graduated cylinder and observing how much the water level increases.
Is the resistance that a solid has to breaking when hit.
tenacity.
Define mixture.
contain more than one type of substance.
What is mass?
tells us how much matter is in an object.
unit of measurement of the mass.
grams (g) for light objects and kilogras (kg) for heavy objects.
Calculate the density.
m- 90 g
v- 10 cm3
density- 9 g/cm3
Define heterogeneous.
haven't got a uniform composition. You can visibly see the different types of matter that are present.
what is volume?
the space an object occupies.
unit of measurement of the volume.
cubic centimetres (cm3)
Calculate the density.
m- 56 g
v- 4 cm3
density- 14 g/cm3
Define homogeneous mixtures.
have got a uniform composition. You cannot see the types of matter that are present.
What is matter?
matter is everything that has got volume and mass.
Volume measures size in three dimensions (cm3). what does the number 3 represent?
represents the three measurements of the objects which are length, width and height.
What is density?
the relationship between the mass of something and the volume it occupies.
What is an alloy?
is a homogeneous mixture of two or more elements, being one a metal.