Atmospheric Pressure

When you blow directly into the bag, the only air flowing into the bag is from your lungs. When you blow from a short distance...

Enrichment Activity 5-11 11-14

Once the water begins to flow through the straw, the rest of the water follows as it's pulled through.

Enrichment Activity 5-11 11-14

The flat sheet of newspaper has a large enough area so that the downward force of the atmosphere counters the upward force...

Enrichment Activity 5-11 11-14

The hot water heats up the air inside the glasses, which expands and some escapes. With the two glasses held together the...

Enrichment Activity 5-11 11-14

Pull the glass out and the tissue is…Dry! The air trapped inside the mug is at atmospheric pressure and this keeps the water...

Enrichment Activity 5-11 11-14

If you blow softly the inner cup rises up slowly. If you blow hard the top cup launches itself across the room. Moving air has...

Enrichment Activity 5-11 11-14

The apples move toward each other. Blowing reduces the air pressure in the gap between the apples. The air pushing on the...

Enrichment Activity 5-11 11-14

It's impossible to suck water through the straws. In order for the water to be forced into your mouth, the pressure outside...

Enrichment Activity 5-11 11-14

When you take the newspaper out, it is completely dry! Water cannot fill the container because of the air trapped inside it...

Enrichment Activity 5-11 11-14

At first the balloon dips deep into each cup, but it flattens outas you inflate it, taking up less space in the cups, so the...

Enrichment Activity 5-11 11-14

Normally, the air above and below empty scales pushes equally in all directions, so the forces cancel out and they read zero...

Enrichment Activity 5-11 11-14