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Who used a microscope to discover tiny living things?
Antoni van Leeuwenhoek
Who helped people by giving the first smallpox vaccine?
Edward Jenner
What did Antoni van Leeuwenhoek see through his microscope?
Tiny germs
Who helped keep milk and juice safe by heating it up?
Louis Pasteur
Who was a doctor that performed one of the first heart surgeries?
Daniel Hale Williams
What problem did Louis Pasteur’s discovery help solve?
Making food and drinks safer
Who is known for making hospitals cleaner and safer?
Florence Nightingale
What did Florence Nightingale use to help people in hospitals?
Cleanliness and good care
Why was Edward Jenner’s vaccine important?
It stopped smallpox