EXPERIMENT WITH WATHER AND STRAW

Wather in glass

You are doing a hole in the straw

Air is escaping from a hole therefore bubbles not arise

Closing the a hole in the straw with your finger , the water is bubbles

Creators experiment for you

Kateřina JankůAdéla ŠvarcováAnna Soprová

We looked at your presentation and then we had fun experimenting.

The children really enjoyed taking part.

1. Try blowing without covering up the hole in the straw.

2. Look for the hole in the straw and cover it with your finger.

3. Blow again. Look at those bubbles!

4. Sit back in satisfaction. “I’ve made a bubble.”

1. Ready for the experiment to begin

2. Find the hole in the straw and cover it with your finger.

3. Take your hand away. Look no bubbles.

4. Listen to what you said during the experiment.

Did the children understand what the bubbles where made of? The majority of children could not put into words

their understanding of the impact of blowing the air into the water.

However they did repeat the action of placing their hand over the hole and removing it several times and showed that they knew they would have more bubbles when the hole in the straw was covered.

Their understanding of the impact seemed to be greater than their ability to communicate this in language and to understand the makeup of the bubbles.

This is reasonable to expect for their age, but does not diminish the experience as an enjoyable hands on introduction to the connection between air and water.

Talking with the children and encouraging them to feel the air coming out of the hole in the straw, while blocking off the end of the straw helped to make the connection between air coming out of the straw and going into the water.

One child, aged 4, did make the connection between air and the bubbles.This is what he said, when he covered the hole in the straw:

Connor: “The air doesn’t get near the air hole.” Encouraging him to take his straw out of the water and blow again while

covering the hole, helped him to identify air coming out of the end of the straw.

Then as he put it back into the water and blew while covering the hole:

Mrs O: “Now where is the air going?”Connor: “Into the bubbles.”Mrs O: “So what are the bubbles made of?”Connor: “Air!”Mrs O: “That’s right. The bubbles are in the water, but they are made of?Connor: “Air!”