985.652 : 76 y Prueba
574.652 : 475 y Prueba
985.635,24 – 74.652=
820.345 + 125.324,654 =
34.567 : 35 y Prueba
652,3 :100 =
987.456 X 7,65=
2014 FIFA World Cup Brazil starts today!!
If you want to follow what happens in this year’s World Cup, click on the picture and print the worksheets.
Click here to download the World Cup Bracket to make your guess.
“II OLIMPIADA ESCOLAR”. Organizada por la Concejalía de Deportes del Ayuntamiento para los alumnos de 4º y 5º.
"En el nombre de todos los competidores, yo prometo que nosotros participaremos en estos Juegos Olímpicos, respetando y cumpliendo las reglas que lo gobiernan, en el verdadero espíritu deportivo, por la gloria del deporte y el honor de nuestros equipos".
"In the name of all competitors, I promise that we will take part in these Olympic Games, respecting and according to the rules which govern them, committing ourselves to a sport without doping and without drugs, in the true spirit of sportsmanship, for the glory of sport and the honour of our teams”.
Barón de Coubertin
Be Happy and
Have a wonderful weekend!!
A force is any pull or push that can put an object into motion, stop an object or change the way that it moves. A force can also deform or break an object.
2. What are the main types of forces? Give examples.
The main types of forces are contact forces and non-contact forces.
Contact forces act on objects by making physical contact, for example, a tennis player shots the ball with his tennis racket.
Non-contact forces act on objects without making physical contact, for example, a magnet attracting iron from a distance.
3. What type of force is magnetism?
The force of magnetism is a non-contact force.
4. What is the force of gravity? What does it depend on?
The force of gravity is a non-contact force that depends on an object’s mass and its distance from the Earth.
5. How do mass and distance affect the force of gravity?
Gravity is stronger on objects that have got more mass and on objects that are near the Earth.
6. Why do astronauts float in space?
Astronauts float on space because gravity is weaker on objects that are far from the Earth.
7. What is a machine?
A machine is a tool that multiplies force to make work faster and easier.
8. What is a simple machine?
A simple machine is a machine that usually has got one or two parts.
9. What is a complex machine?
Complex machines are combinations of two or more simple machines. They have got many parts.
10. In what everyday machines can we find gears?
We can find gears in clocks, bicycles and door handles.
11. What are the main types of simple machines?
The main types of simple machines are: the wheel, the pulley, the ramp, the lever and the screw.
12. How can we use a pulley?
We use pulleys to lift loads. When we pull down on one end of the rope the other end pulls up the load. We use the same amount of force, but the pulley makes the work more comfortable.
13. How can we use a ramp?
We use a ramp to go up and down. We can also use a ramp to move heavy loads more easily.
14. How can we use a lever?
We use levers to move and lift objects more easily.
15. How do we call the fixed point of a lever?
We call it fulcrum.
16. Let’s see how much you know about your bicycle: What is the part that connects the crank to the back wheel? What do you use to change the direction of the front wheel? What is the special wheel with metal gears? What does a cable to control the brake pull?
The part that connects the crank to the back wheel is the chain.
The part that we use to change the direction of the front wheel is the handlebar.
The special wheel with metal gears is the crank.
The cable to control the brake pulls the brake lever.
17. What is technology? What does it include?
Technology is the art of applying scientific knowledge to solve practical problems. It includes designing and building the necessary equipment.
18. What is the most important invention in the history of transport?
The most important invention in the history of transport is the wheel.
19. What type of engine have most aeroplanes got today?
Most aeroplanes use the jet turbine.
20. What did the steam engine give us?
The steam machine gave us a new way to power machines and vehicles.
365.324 : 76 y Prueba
756.523 : 624 y Prueba
875.365,25 - 64.235=
254.368 + 98.388,9 =
68.745 : 88 y Prueba
6.523 :100 =
652,349 X 65,4=
- What is a force?
- What are the main types of forces? Give examples.
- What type of force is magnetism?
- What is the force of gravity? What does it depend on?
- How do mass and distance affect the force of gravity?
- Why do astronauts float in space?
- What is a machine?
- What is a simple machine?
- What is a complex machine?
- In what everyday machines can we find gears?
- What are the main types of simple machines?
- How can we use a pulley?
- How can we use a ramp?
- How can we use a lever?
- How do we call the fixed point of a lever?
- Let’s see how much you know about your bicycle: What is the part that connects the crank to the back wheel? What do you use to change the direction of the front wheel? What is the special wheel with metal gears? What does a cable to control the brake pull?
- What is technology? What does it include?
- What is the most important invention in the history of transport?
- What type of engine have most aeroplanes got today?
- What did the steam engine give us?
Fancy playing a game on SIMPLE MACHINES while learning a bit more about them?
Click on the picture to start.
We use tags in spoken English but not in formal written English.
They are not really questions but are a way of asking the other person to make a comment and so keep the conversation open.
Making a tag is very mechanical. To make a tag, use the first auxiliary. If there is no auxiliary, use do, does or did. With a positive sentence, make a negative tag and with a negative sentence, make a positive tag.
- It’s beautiful, isn’t it?
- He has been, hasn’t he?
- You can, can’t you?
- It must be, mustn’t it?
- You know him, don’t you?
- He finished it, didn’t he?
- He will come, won’t he?
- It isn’t very good, is it?
- It hasn’t rained, has it?
- It can’t be, can it?
- Jenny doesn’t know James, does she?
- They didn’t leave, did they?
- He won’t do it, will he?
- There isn’t an ATM here, is there?
- Let’s have a cup of coffee, shall we?
To reply, use the same auxiliary:
- It’s beautiful, isn’t it? ~ Yes, it is. I think it’s fabulous.
- It isn’t very good, is it? ~ No, it isn’t. In fact, it’s terrible.
Motion makes the world go 'round. Motion is important to our lives and impacts so many things that we do. Motion is the changing of position or location. But motion requires a force to cause that change.
Force is just a fancy word for pushing or pulling. If I push on something or pull on it, then I am applying a force to it. Force makes things move or, more accurately, makes things change their motion. Two natural forces that we have experienced are the force of gravity and magnetic forces.
Carry on learning about force and motion by clicking here....
Here is at last, our second magazine!!!!
Hope you like it!!
By placing an egg in a bowl containing vinegar, we can observe changes in its physical properties. Through this home experiment we'll try to explain in more detail each of the physical changes (color, smell, texture, etc.), as well as possible changes in chemical structure (decomposition).
Click here to learn about the experiment...