Your Brain

Questions

1. Main idea What is this passage mostly about?

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

   to break food down into nutrients your body can use to control everything your body does to move your body to cut and grind food so you can swallow it
3. Vocabulary What does "nerve" mean?

   the parts of food the body uses to grow and stay healthy the tubes that carry blood around the body a place where two bones meet and can move 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?

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

   Your two lungs are not the same size: the left one is a little smaller to make room for your heart. Messages can travel along some nerves faster than a race car. Tooth enamel is the hardest substance in the human body. In an adult, the small intestine is about 6 meters long, folded up inside the belly.
6. Inference Which habit would the author most likely recommend?

   Running, swimming and playing make the heart muscle stronger. Sleep gives the brain time to rest and to store what you learned that day. Washing and sunscreen help protect your skin. Clean air and exercise keep the lungs healthy; smoke harms them.

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