Summer Holidays

Hi! I'm going to teach you how to play tennis:

Materials:

-A racquet

-A tennis ball

Instructions:

1st- In the service you must hit the ball to the opposite court.

2nd- Every matches are divided in sets and each set is divided in points like this: 15,30,40 and if all the players have 40 points, there is an extra point that is called 'advantage'.

3rd- To score a point, the ball must hit the enemy court 2 times.

4th- If you hit the ball outside the court, the point is for the enemy player.

Now, at the end of the course I want to dedicate you one of my favourites songs.

I WISH THE BEST SUMMER HOLIDAYS TO YOU!

hydrogen's cars

The atmosphere's pollution is the biggest problem in the world, because if it continues, the temperature will increase even more. If we don't stop it, the poles will disappear and the sea level will be increased. Finally, many species of animals and plants will be extinct.

In our cities there are a lot of cars. To run a car, we need fossil fuels, but there is an alternative. We can use hydrogen's cars, because it is cheaper and eco-friendly because it is a renovable energy. The hydrogen will repair the atmosphere and the pollution and the golbal warming will disappear.

We can also use the electric cars, but to produce electricity we need power plants, and they are more expensive than the hydrogen. But if we use this energy, we won´t need fossil fuels and the pollution will be decreased.