SKELETAL & MUSCULAR SYSTEMS
What system gives the body support and protects important organs?
Answer: Skeletal system
What is the largest organ of the human body and helps protect us from the outside environment?
Answer: Skin
What system breaks down the food we eat so our body can use it?
Answer: Digestive system
Which system helps bring oxygen into the body?
Answer: Respiratory system
Why do our muscles need bones when we move?
Answer:
Muscles pull on bones to help the body move.
Why is the skin important to our body?
Answer:
It protects the body from injury, germs, and harmful substances and helps regulate body temperature.
Why does food need to be broken down during digestion?
Answer:
Food needs to be broken down so the body can absorb and use nutrients.
Why can't the body's systems work completely on their own?
Answer:
They work together to provide the body with what it needs to survive and function.
You want to pick up a heavy school bag. How do your bones and muscles work together to help you?
Answer:
The muscles contract and pull on the bones, allowing the arms and hands to move and lift the bag.
You run around outside on a hot day and begin to sweat. How does your skin help your body?
Answer:
Sweating helps cool the body and regulate its temperature.
Question:
You eat a sandwich for lunch. What happens to the food as it moves through your digestive system?
Answer:
It is broken down into smaller parts, nutrients are absorbed, and the remaining waste is removed from the body.
You run during PE class. Which three body systems work together to help you move and keep going?
Answer:
Possible answers: muscular, skeletal, respiratory, and digestive systems.
Imagine that a person's arm bones are healthy, but the muscles in the arm cannot contract. What would happen when the person tries to lift something? Explain why.
Answer:
The person would have difficulty or be unable to lift it because the muscles need to contract and pull on the bones to create movement.
A person has difficulty breathing because air cannot move properly into the lungs. How could this affect the rest of the body?
Answer:
The body may not receive enough oxygen, which can make it difficult for cells and organs to work properly.
Imagine that a person's digestive system cannot absorb nutrients properly. How might this affect the person's body?
Answer:
The body may not receive enough nutrients and energy needed for growth, repair, and normal activities.
When you run, your muscles need more oxygen and energy. Explain how the respiratory, digestive, skeletal, and muscular systems can work together to help you.
Answer:
The respiratory system brings in oxygen, the digestive system provides nutrients from food, and the skeletal and muscular systems work together to produce movement.
A laboratory needs to separate two liquids that have very similar boiling points. One student chooses simple distillation, while another chooses fractional distillation. Who made the better cho
A student says, “Bones are more important than muscles because bones support the body.” Do you agree? Explain your answer.
Answer:
Both are important. Bones provide support and protection, while muscles help the body move and maintain posture.
Question:
A student says, “Breathing is only important when we exercise.” Do you agree? Explain why.
Answer:
No. The body needs oxygen all the time to help cells and organs function, whether we are resting or exercising.
Two students eat lunch.
Student A: Eats a balanced meal with fruits, vegetables, grains, and protein.
Student B: Eats mostly foods high in sugar and fat.
Which eating pattern is more likely to support a healthy digestive system? Explain your reasoning.
Answer:
Student A's eating pattern is more likely to support health because a balanced diet provides a variety of nutrients and fiber that support normal digestion.
Imagine that one body system suddenly stops working properly. Would this affect only that system? Explain why or why not using an example.
Answer:
No. Body systems depend on one another. For example, if the respiratory system cannot provide enough oxygen, muscles and other organs may not work properly.