Your Heart

Questions

1. Main idea What is this passage mostly about?

   what your lungs do and how to keep them healthy what your heart does and how to keep it healthy what your skeleton does and how to keep it healthy what your digestive system does and how to keep it healthy
2. Details What is the job of your heart?

   to pump blood all around your body to hold your body up and protects the soft parts inside to break food down into nutrients your body can use to cut and grind food so you can swallow it
3. Vocabulary What does "blood vessels" mean?

   the parts of food the body uses to grow and stay healthy the tubes that carry blood around the body the hard, shiny outer layer of a tooth a thin fiber that carries messages between the brain and the body
4. Cause and effect According to the passage, why does this job matter?

   Blood carries oxygen and food to every part of your body, so it must keep moving. Every cell in your body needs oxygen to make energy. Every move you make, from blinking to jumping, needs a muscle to pull on something. Your body needs one control center to make all its parts work together.
5. Details Which fact is in the passage?

   A child's heart beats about 70 to 100 times a minute when resting, and faster when running. Your two lungs are not the same size: the left one is a little smaller to make room for your heart. In an adult, the small intestine is about 6 meters long, folded up inside the belly. Skin is the largest organ of the body.
6. Inference Which habit would the author most likely recommend?

   Clean air and exercise keep the lungs healthy; smoke harms them. Running, swimming and playing make the heart muscle stronger. Brushing twice a day removes the sugar and germs that cause cavities. Sleep gives the brain time to rest and to store what you learned that day.

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