Your Teeth

Questions

1. Main idea What is this passage mostly about?

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

   to pump blood all around your body to cut and grind food so you can swallow it to control everything your body does to move your body
3. Vocabulary What does "enamel" mean?

   the hard, shiny outer layer of a tooth a gas in the air that the body needs to live a tiny opening in the skin the parts of food the body uses to grow and stay healthy
4. Cause and effect According to the passage, why does this job matter?

   Every cell in your body needs oxygen to make energy. 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. Nutrients from food pass from the small intestine into your blood to feed every cell.
5. Details Which fact is in the passage?

   Tooth enamel is the hardest substance in the human body. Messages can travel along some nerves faster than a race car. Your two lungs are not the same size: the left one is a little smaller to make room for your heart. Skin is the largest organ of the body.
6. Inference Which habit would the author most likely recommend?

   Brushing twice a day removes the sugar and germs that cause cavities. Clean air and exercise keep the lungs healthy; smoke harms them. Stretching and active play keep muscles strong and flexible. Washing and sunscreen help protect your skin.
7. Evidence Which sentence explains how it does its job?

   Brushing twice a day removes the sugar and germs that cause cavities. Front teeth called incisors cut food, and flat back teeth called molars grind it. Tooth enamel is the hardest substance in the human body. A dome-shaped muscle called the diaphragm pulls down to draw air in, then relaxes to push it out.

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