The Immune System Classwork worksheet - Free Printable

Let’s go through each question one by one.

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Question 1: What is the main function of the immune system?

The immune system is like your body’s defense team. Its job is to protect you from germs — like viruses and bacteria — that can make you sick. It finds these bad guys, fights them off, and remembers them so it can fight faster next time.

✔ So, the main function is: to protect the body from diseases caused by harmful invaders like viruses and bacteria.

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Question 2: In The Bahamas, illegal drugs are frequently used by young people. Which TWO (2) of the following are considered illegal drugs?

Wait — this question doesn’t list any options! That’s a problem. But since this is a Grade 6 science worksheet about the immune system, and not a drug education sheet, it’s likely there was supposed to be a multiple-choice list that got cut off or missed in printing.

However, based on common knowledge for students in The Bahamas (and most places), two commonly known *illegal* drugs for young people might include:

- Marijuana (weed)
- Cocaine

But again — without the actual choices given in the original task, we can’t pick “which two” from a list. Since this is a classwork sheet, maybe the teacher gave verbal instructions or had a separate handout?

⚠️ Important note: This question seems out of place on an immune system worksheet. It may be a mistake or misprint. If you’re doing this at school, ask your teacher what the options were!

For now, I’ll assume common examples taught in schools:

✔ Two illegal drugs often mentioned: Marijuana and Cocaine

*(Note: Always follow your country’s laws and school guidelines.)*

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Question 3: Read the following statements. Choose whether the statement is True or False.

a. ________ HIV is a disease that destroys the immune system.

→ HIV attacks the cells that help your immune system work. Over time, if untreated, it weakens your body’s ability to fight infections. So yes — it destroys the immune system.

✔ Answer: True

b. ________ Medicine helps the immune system fight off diseases.

→ Some medicines (like antibiotics or antivirals) help kill germs directly. Others (like vaccines) train your immune system. Even pain relievers or fever reducers let your body rest so it can heal better. So yes — medicine supports your immune system.

✔ Answer: True

c. ________ All illnesses are caused by an infection.

→ No! Not all illnesses come from infections. For example:
- Broken bones aren’t infections.
- Diabetes isn’t caused by germs.
- Asthma or allergies aren’t infections either.

Infections are caused by germs (viruses, bacteria, etc.), but many sicknesses happen for other reasons.

✔ Answer: False

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Final Answer:

1. The main function of the immune system is to protect the body from diseases caused by harmful invaders like viruses and bacteria.

2. Two illegal drugs (commonly recognized): Marijuana and Cocaine
*(Note: Original question missing answer choices — please check with teacher if unsure.)*

3.
a. True
b. True
c. False