In this activity you will explore the shape and structure of three different species of disease-causing bacteria through balloon modelling. You can make a balloon model of up to three bacteria: Streptococcus pneumonia, Salmonella enterica or Campylobacter jejuni. Then find out how they each cause disease in humans.
Bacteria are living organisms that grow and divide rapidly in the right conditions. Some bacteria are harmful and can cause disease if they enter our body. In this activity you will look at three examples of disease-causing bacteria. Streptococcus pneumonia causes a sore throat. Salmonella enterica and Campylobacter jejuni both come from contaminated food and cause diarrhoea.
Bacteria are incredibly small so can only be seen under a microscope. They can be divided into groups according to their shape and structure. Those shaped like spheres or balls are called cocci, those shaped like rods are called bacilli, and those shaped like spirals are called spirochetes. Some bacteria move around their environments by way of tail-like structures called flagella. These features can be used to identify different species of bacteria.
Age: 7 years + (KS2 +)
This page was last updated on 2022-06-29
How helpful was this page?👎 👍 Send
What's the main reason for your rating?Send
Which of these best describes your occupation?Send
how old are students / how old are you?Send
What is the first part of your school's postcode?Send
How has the site influenced you (or others)?Send
Thankyou, we value your feedback!
If you have any other comments or suggestions, please let us know at firstname.lastname@example.org
Can you spare 5-8 minutes to tell us what you think of this website? Open survey