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Basics of Addiction Science

Health Science

An introduction to how substances affect the body and brain, aligned with health and science curriculum standards.

health science addiction education

15 Questions Easy Ages 5+ Aug 3, 2026

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About this Study Set

This study set covers Health Science through 15 practice questions. An introduction to how substances affect the body and brain, aligned with health and science curriculum standards. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 15 questions from the Basics of Addiction Science study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which organ is primarily affected by substances that change how a person thinks or feels?

A The stomach
B The brain
C The lungs
D The skin

2 What is the term for a substance that slows down the activity of the brain and nervous system?

A Stimulant
B Depressant
C Nutrient
D Vitamin

3 Which substance is a legal stimulant found in coffee and some soft drinks?

A Caffeine
B Protein
C Water
D Sugar

4 What happens when someone becomes dependent on a substance and feels they need it to function?

A Addiction
B Growth
C Exercise
D Digestion

5 Which organ is responsible for filtering toxins and substances out of the blood?

A Heart
B Liver
C Eyes
D Ears

6 What is the main chemical in tobacco products that makes them addictive?

A Oxygen
B Nicotine
C Calcium
D Iron

7 Which part of the body controls movement, memory, and emotions?

A The brain
B The toes
C The fingernails
D The hair

8 What is the name for substances that speed up messages traveling between the brain and the body?

A Depressants
B Stimulants
C Minerals
D Sedatives

9 How do drugs typically enter the bloodstream when they are inhaled into the lungs?

A Through the digestive system
B Through the skin
C Through gas exchange in the alveoli
D Through the ears

10 What is a 'side effect' of a substance?

A An unintended physical or mental change
B The main goal of taking medicine
C A type of healthy snack
D A form of physical exercise

11 Which of these is a common health risk associated with smoking tobacco?

A Stronger bones
B Improved lung health
C Damage to the lungs and heart
D Better vision

12 What does the nervous system use to send signals throughout the body?

A Electrical impulses
B Food particles
C Water
D Oxygen

13 Why are many substances harmful to a developing child's brain?

A They are too expensive
B They interfere with healthy growth and development
C They make the brain grow too fast
D They change the color of the brain

14 What is the role of medicine when used correctly?

A To make people addicted
B To help treat or prevent illness
C To change someone's personality
D To replace all physical activity

15 Which substance is known to impair coordination and reaction time, making driving unsafe?

A Water
B Milk
C Alcohol
D Fruit juice

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