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Primary Science and Technology Teachers' Guide - OECS

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<strong>Primary</strong> <strong>Science</strong> & <strong>Technology</strong> Teacher Manual – Resources – K – 4<br />

3. Air Can Be Compressed<br />

Instructions<br />

1. Put your h<strong>and</strong> over the end of a small bicycle pump<br />

2. Push the h<strong>and</strong>le down<br />

Can the h<strong>and</strong>le reach right down? Why ?<br />

4. We can hear moving air<br />

Instructions<br />

1. Blow the balloons, then tie the end.<br />

2. Untie <strong>and</strong> release the air slowly.<br />

Can you hear the air as it escapes?<br />

5. Air does offer resistance<br />

Instructions<br />

1. Blow into the paper/plastic bag or balloon.<br />

2. Loosely tie the neck of the bag.<br />

3. Push down on the bag.<br />

What do you notice?<br />

Safety Precautions :<br />

bags<br />

Be careful when students are using plastic<br />

51

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