Preventing infections can be achieved by which of the following methods?

• Washing hands regularly

• Ignoring hygiene

• Sharing personal items

• Avoiding vaccinations

(a)   is an illness caused by harmful germs entering and multiplying in the body.

• Infection
• Fracture
• Allergy
• Sprain

Fill in the blank: ________ are tiny living things like bacteria, viruses, fungi, and parasites that can make people sick.

• Germs

• Vitamins

• Minerals

• Proteins

(a)   is the term used when harmful germs are present on surfaces, objects, skin, or food.

• Contamination
• Evaporation
• Fermentation
• Filtration

What are pathogens?

• Helpful germs

• Germs causing disease, like the flu virus or Salmonella bacteria

• Only bacteria

• Only viruses

Match the following types of germs with their examples.

• No example provided

• Salmonella bacteria

• A type of bacteria that can cause food poisoning

• Flu virus

• An example of a virus that causes illness

• None of the above

• A type of bacteria that helps protect your body

• Skin bacteria

Match the following situations with their possible outcomes.

• A person sneezes without having any infection.

• The person will become immune to all diseases.

• A person takes a medicine that works immediately.

• Nothing will happen.

• A person sneezes while having an infection.

• The medicine will cure the infection instantly.

• A person receives a vaccine for all diseases.

• The infection could spread to others.

Germs and pathogens are most likely to live and thrive in places you interact with regularly, like your school or home, such as (a)   .

• On doorknobs and shared surfaces
• Inside closed books
• On dry, clean paper
• In sealed food containers

Scarlett notices that her cell phone and other shared electronics often have germs on them. Why is this likely to happen?

• Because we touch them constantly

• Because they are always clean

• Because they are never used

• Because they are kept in bags

(a)   are types of germs.

• A) Bacteria
• B) Viruses
• C) Fungi
• D) Parasites
• E) All of the above