Introduction
-You have some different materials
You must determine which of them sink in water (more denser than water)
and which of them float on water (less denser than water)
-You must know what is meant by density
Task
First
You will prove by an experiment that some materials sink in water and other float on water (differentiate between more denser materials and less denser materials)
Second
You must define the density
Process
Task 1
To differentiate between the denser and less denser materials ,you must show the following video
Task 2
look at the following link to define what is meant by
density
Evaluation
1-Define the following
The density of iron is 7.8 gm/cm3
2-Give a reason
The iron nail sinks in water while the piece of wood floats on it ?
3-complete
Each matter has it's ..................density
Conclusion
Density
It is the mass of unit volume of matter
The unit of density is gm/cm3
-Each matter has it's own density
-Some matters float on the surface of water because they have density less than density of water as
Wood
Ice
Cork
Oil
Plastic
The other matters sink in water because they have density more than the density of water as
Iron
Copper
Alumimum
Gold