Page 251 - New Medley 4 Semester 1

Competencies
C-3.1, C-4.3
• Health and Well-being
• Life Skills
• Hands-on Learning
• Remembering
21st CENTURY SKILLS
• Understanding
• Critical Thinking
5 The World of Microbes • Collaboration

Warm Up • Health and Well-being

Anita could not attend school
today as she was suffering from

influenza. Influenza is an infectious
disease commonly known as flu.

It usually spreads by germs.

What are germs? Are you

wondering?

Germs are the disease-causing
microbes. Microbes are very tiny

organisms. We cannot see them,
despite they are present everywhere.

WHAT ARE MICROBES

Germs are present everywhere on the earth. The germs are
very tiny living organisms. We can see them only with the help

of a microscope. That is why they are also called microbes.

A microscope shows an enlarged image of very small things.
Thousands of microbes can be present in a single drop of
pond water.

Microbes are present on our skin, on plants, in soil, in water A microscope

249