sábado, 26 de diciembre de 2015
miércoles, 16 de diciembre de 2015
lunes, 30 de noviembre de 2015
domingo, 29 de noviembre de 2015
sábado, 28 de noviembre de 2015
viernes, 20 de noviembre de 2015
domingo, 15 de noviembre de 2015
lunes, 26 de octubre de 2015
miércoles, 10 de junio de 2015
HOMOGENEOUS AND HETEROGENEOUS MIXTURES
EXPLANATION OF HOMOGENEOUS AND HETEROGENEOUS MIXTURES BY MIREIA MARTÍNEZ!! WELL DONE!!
jueves, 4 de junio de 2015
sábado, 30 de mayo de 2015
Mixtures
Homogeneous mixtures: we can´t see the different ingredients.
Milk + sugar + cocoa powder....Can you see the ingredients? It's a homogeneous mixture.
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Heterogeneous mixtures: we can see and separate the ingredients easily.
Lettuce + oil + vinegar + tomato + cucumber....Can you see the ingredients? Can you separate them? It´s a heterogeneous mixture.
Matter: Mass and volume
Everything that has mass and volume is matter.
- Mass is the amount of matter of an object. It's measured in kilograms (kg) using a scale.
- Volume is measured in litres (l) . It's the space that an object takes up. We use a jug.
martes, 26 de mayo de 2015
domingo, 19 de abril de 2015
sábado, 18 de abril de 2015
Energy changes
One type of energy can be transformed into another one.
In this one, light energy (from the sun) changes into heat energy (we burn a paper!!)
In this video you will see how kinetic energy (from falling water) is transformed into electricity.
In this one, light energy (from the sun) changes into heat energy (we burn a paper!!)
Types of energy!
Kinetic energy: produced by things in movement.
Chemical energy: is stored in food, wood, petroleum, gas, oil...
Sound energy: this energy produces sound. A guitar, a piano, a person clapping hands, somebody singing...
Light energy: the sun, the stars, a light bulb, fire...
Electric energy: electric devices use electric energy. A computer, a tv, a phone, a radio, a machine...
Heat energy: something is hot!!!!
domingo, 15 de marzo de 2015
domingo, 8 de febrero de 2015
martes, 27 de enero de 2015
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