Page 6 - Science E-book Prim.5 2024-2025 1st term (1)_Neat
P. 6
The size of particles depends on:
1- The type of particles.
2- How particles are connected.
The average size of a particle is about “1 hair”
150,000 to 300,000
Regular microscope Electron “Special” microscope
It is used to see some of the It is used to see the components
particles of matter. of one particle.
As the components of blood cell.
Showing the invisible tiny particles of gases
Air particles inside Air particles close
move very quickly. together, the balloon
The particles hit and becomes smaller.
bounce the balloon from
Squeezing more will
inside, so this force pop the balloon and
inflate the balloon.
air particles will
escape.
First Term 42
