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Which are the fossil fuels?
Coal, gas and oil
Is tidal energy a renewable resoruce?
Yes
What resources don't run out?
Renewable resources
What are the properties of the energy?
We can transfer it, transform it, store it ans transport it
If I want to watch the TV I need .... energy
Electrical
What is the energy associated to motion and position?
Mechanical
What type of energy is this?
Light energy
Has energy mass and space?
No
What are bending, stretching and compressing?
Forces
If I freeze water, what type of change is?
Physical change
What change is it..?
Chemical change
How can we separate the oil with the water?
Decantation
What is this method?
Filtration
Which is the difference between a homogeneous mixture and a heterogeneous mixture?
In the first one you can't see the components and the second one you can see them
What is a pure substance?
It is formed by one substance
How can we measure the volumen?
In litres
What is the mass?
It is the amount of matter in an object


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