📚 Grade 7 Science: Lessons B.E.S 📚
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Lessons 1.10: Study human body systems in-depth.
Lesson 1.1: The Skeletal System
The skeletal system provides support, protection, and helps in movement.
Example: "Your skull protects your brain, and your ribs protect your heart and lungs."
Quiz: What does the skeletal system do?
How to get the right answer:
Think about how your bones hold your body up and protect important organs like the brain and heart!
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Lesson 1.2: The Muscular System
Muscles allow movement and help with body functions like breathing and digestion.
Example: "Your heart is a muscle that pumps blood throughout your body."
Quiz: What is one function of the muscular system?
How to get the right answer:
Think about how you use muscles to walk, smile, and even move food through your digestive system!
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Lesson 1.3: The Circulatory System
The circulatory system transports oxygen and nutrients through the blood.
Example: "Your heart pumps blood through arteries to bring oxygen to your body."
Quiz: What organ pumps blood through the body?
How to get the right answer:
Think about how your heart acts like a pump, sending oxygen-filled blood all around your body!
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Lesson 1.4: The Respiratory System
The respiratory system allows the body to take in oxygen and release carbon dioxide.
Example: "When you breathe in, your lungs fill with oxygen that goes into your blood."
Quiz: What gas do you breathe in?
How to get the right answer:
Think about how you need oxygen to survive, and your body gets rid of carbon dioxide when you breathe out!
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