Do You Know Your Scientist?
	    		Do You Know Your Scientist?
Fact Card
Catherine, Emma, Mabel, Rachel POINTS
Used vacuum to discover the ratio of the electrical charge to the mass of the particle.
 Graphic by Eric Hamber Secondary
	    		
	    		
Catherine, Emma, Mabel, Rachel POINTS
Used vacuum to discover the ratio of the electrical charge to the mass of the particle.