Science Questions (Form 3)
1. Respiration and Breathing
What is the main purpose of respiration in cells?
Explain the difference between breathing and respiration.
Where does gas exchange occur in the human respiratory system?
2. Nutrients and Health
List the main types of nutrients needed by the human body and their functions.
Why is a balanced diet important for maintaining good health?
Describe the effects of iron deficiency on the body.
3. The Nervous System
What are the two main parts of the nervous system, and what are their roles?
Define a reflex action and give an example.
How does the brain receive information from the body?
4. Electricity and Magnetism
What is the difference between a series circuit and a parallel circuit?
Explain how an electromagnet is made and name one application of it.
What happens when two like poles of a magnet are brought together?
5. The Solar System
Name the planets in the solar system in order from closest to farthest from the Sun.
What is the difference between a comet and an asteroid?
Describe one way in which the Sun is important to life on Earth.
1. Respiration and Breathing
What is the main purpose of respiration in cells?
Explain the difference between breathing and respiration.
Where does gas exchange occur in the human respiratory system?
2. Nutrients and Health
List the main types of nutrients needed by the human body and their functions.
Why is a balanced diet important for maintaining good health?
Describe the effects of iron deficiency on the body.
3. The Nervous System
What are the two main parts of the nervous system, and what are their roles?
Define a reflex action and give an example.
How does the brain receive information from the body?
4. Electricity and Magnetism
What is the difference between a series circuit and a parallel circuit?
Explain how an electromagnet is made and name one application of it.
What happens when two like poles of a magnet are brought together?
5. The Solar System
Name the planets in the solar system in order from closest to farthest from the Sun.
What is the difference between a comet and an asteroid?
Describe one way in which the Sun is important to life on Earth.
