Activity 4/4. Taking Notes

Verbs:

find count compare ask extend place run

Text 1

Sight, hearing, touch, smell and taste are what allow you to experience life and create memories of what you've encountered. These senses are part of a larger system, which includes the brain, spinal cord and nerves. The senses are responsible for receiving information from the world, but it's the brain that gives it all meaning.

Materials: - Open space for two people to stand, a 12 inch ruler, and a friend.

1.Extend your arm with your thumb and index finger separated, as if to pinch something.

2. ask your friend to hold the ruler vertically just above your hand. Your friend should drop the ruler between your fingers without warning.

3.Try to catch the ruler as fast as you can. How are your senses and nervous system working together to react?

Did you catch the ruler the first time or did it take several tries? Did you get better with practice?

What do you think about the results of your experiment?

Text 2

There are about 5 liters of blood constantly circulating through your body due to the pumping action of your heart. Blood is transported throughout your entire body in blood vessels, like arteries and veins, of different sizes. The circulation of blood and the way it provides oxygen to your body is what makes up the circulatory system.

Materials: Open space for exercise; pencil and paper.

1. Sitting quietly, find your pulse with the fingers of your right hand on the underside of your left wrist. (or on the side of your neck, the vessels of your foot, or your temples.)

Why do you think you can feel your pulse in so many different places?

2.Write how many times your pulse beats in 30 seconds. count the number down.

3. Now, do a few jumping jacks.

4. Immediately check your pulse again and write down the number of times it is now beating in 30 seconds

5. Was your pulse rate different when you checked it the second time? Can you explain this?

6. Quietly check your pulse a few more times. How long does it take for the pulse rate to return to what it was when you started the experiment?

Text 3

The cells that make up your body require oxygen in order to reproduce, turn food into energy, and simply to live. How do you get oxygen? When you breathe, your blood carries oxygen from the air to all parts of the body. Breathing requires the coordinated contraction and relaxation of muscles to force air in to and out of your trachea (windpipe) and lungs.

Materials: - Open space for exercise, a drinking straw.

1. run in place for 30 seconds.

2. Next, place the straw in your mouth. While plugging your nose and breathing through the straw run in place for 30 seconds.

3. compare the two sets of exercises. Did the straw make it easier or harder to

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