The hypothesis that all matters are made up of tiny discrete particles and too small to be seen with a naked eye was given by
A. Democritus
B. Aristotle
C. Robert brown
D. Albert Einstein
Related Questions on Chapter 17: Particle Model of Matter - Science Mcqs for Grade 7
A. osmosis
B. diffusion
C. Brownian motion
D. parallel motion
Who suggested that atomos were eternal and could not be destroyed.
A. Democritus
B. Aristotle
C. Robert brown
D. Albert Einstein
The density of a substance is the total mass of a unit. It is called
A. weight
B. volume
C. gravity
D. force
An advance microscope which allows us to see tiny discreet articles in matter is called
A. simple microscope
B. compound microscope
C. electron microscope
D. scanning tunneling microscope