Air Archive

Why does our Voice Sound Different when Recorded?

You must have ever heard your voice from a recording and you have thought that it sounds different. It could also be that you thought it was not your voice because it sounded sharper even shrill, different from the voice you are used to hearing, right? Do you know why does this happen?When you hear a recording of your voice, you are hearing the sound that reaches your ears through …

Scientific Toys: Parachute

Today we’ll show you one of those activities that will help us see physics as a practical and fun science not only for children, but also for their parents. If we just talk about the laws of gravity and falling bodies while locked in a classroom, maybe more than one would start to get bored. But if we discover those laws outdoors while experimenting with a homemade parachute, surely that …

Cars with Air Motor

A few days ago, we were talking about how many experiments with balloons you can do to learn physical principles. Today, we’ll insist on the same action-reaction principle we studied when we raced with rocket balloons, now using it to move some homemade cars with air motor. To build the car’s bodywork, we have several options. What we do is collect recycled material in a box from which the kids …

Balloon Races

In our weekly workshops, we’ve been working on a project of air and wind and we used many balloons as they offer a lot of playful fun. Today we’ll show you one of the activities we’ve done with them. It’s about racing rocket-balloons. For this, you need string scissors, straws, tape, sealing pegs and balloons. Tie one end of the string to a support (i.e. a chair). Before tying the …

Lauching Water Rockets

This experiment follows on from our previous ideas for constructing rockets: a simple one with straws, and a slightly more complex one. Today we will continue with more aerospace science with the construction of water rockets. This will be particularly refreshing, not only because it will be outdoors but because we will use water as well as air. The rocket will be made from a 1.5 or 2 liter plastic …