This is a science activity, about the physical states of matter, this activity is aimed at sixth year students.
This science activity can be downloaded in Word (template that can be modified), in PDF (ready to print) and also the answered activity.
Download this science exercise from:
SCHOOL: DATE:
PROF: CLASS:
NAME:
When we refer to water, the idea that immediately comes to mind is that of a cool, colorless liquid. When we refer to iron, we imagine a hard solid. Air, on the other hand, reminds us of the idea of matter in the gaseous state.
All matter that exists in nature, presents itself in one of these forms – liquid, solid or gaseous. This is what we call physical states of matter.
In the solid state, the water molecules are very “stuck” together and move very little: they are “swinging”, vibrating, but not getting too far from each other. It is not easy to vary the shape and volume of a solid object, such as the wood of a door or the plastic from which a pen is made, for example.
The liquid state is intermediate between the solid and the gas, the molecules are more loose and move more than in the solid state. Bodies in the liquid state do not maintain a definite shape, but adopt the shape of the container that contains them, as the molecules slide over each other. On the flat and horizontal surface, matter when in a liquid state also remains flat and horizontal.
In the gaseous state, matter is very expanded and often we cannot visually perceive it. Bodies in the gaseous state do not have their own volume or shape and also adopt the shape of the container that contains them. In the gaseous state, molecules move more freely than in the liquid state, are much farther apart than in the solid or liquid state, and move in all directions. There are often collisions between them, which also collide with the wall of the container they are in. It's like bees trapped in a box and flying in all directions.
In summary: In the solid state, water molecules vibrate in fixed positions. In the liquid state, molecules vibrate in fixed positions. In the liquid state, molecules vibrate strongly: when the initial position changes, the molecules slide over each other. In the gaseous state (vapor), the molecules move more intensely in a disorderly way.
1) What are the physical states of matter?
R.:
2) How are molecules in a liquid state?
R.:
3) How are molecules in solid state?
R.:
4) How are molecules in a gaseous state?
R.:
5) Give 3 examples of substances in state:
a) Solid:
b) Net:
c) Gaseous:
For ACCESS
At answers are in the link above the header.
report this ad