Send us your questions

Some of our visitors have sent emails with interesting questions, we decided to start having a space to answer them. In this space the blog "Restless Minds" will answer all questions you send us
Send us your question for the email: Restless Minds.

Science progress affects our daily life and "to know" means you are going to chose right, because it allows you to form your own opinion on scientific everyday issues. On the other hand, having an elegant and harmonious vision of the world where we live in leads to a feeling of intellectual satisfaction.
We believe this kind of scientific day to day knowledge should be encouraged from an early age, and that's why this project was born: science, culture, knowledge, crafts for your restless mind.

Saturday, May 4, 2013

The air takes space- water in the jar

This is a very simple demonstration that proves the air takes space

We will need:
  • 2 jars,
  • funnel,demonstração, experiência de física, pressão, propriedades do ar, água,
  • water,
  • modeling clay, a lot,
  • coloring, food coloring is the best,
  • pencil, or a pen, a wood stick, something good to punch the clay ...
How to:
  1. Fill half of the jar with water;
  2. Add a few food coloring to the water, 3 or 4 drops;
  3. Place the funnel in the jar;
  4. Seal the jar area around the funnel with the modeling clay, the air can't go in or out through the jar/funnel contact zone;
  5. Now fill the funnel with some more water.

What happens?
A small quantity of water rolls through the funnel into the flask, but in a few seconds stops, despite the funnel is full of water.

There is no more space in the jar! The jar is half full of water and half full of air, we must to take the air out in order to get the water get in.

Use the pencil to open a hole in the clay.

What happens?
The water immediately falls into the jar.

The water "falls" and pushes the air out the jar, now the air can get out through the hole.

Et voilá!
Easy uh?


No comments:

Related Posts Plugin for WordPress, Blogger...