Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
By : Alvaro Nohales
Vigueras 4º B
We need light to see. When we walk into a dark
room we need turn on the light.
 Light moves in a straight line.
 Light m...
Some objects do not let light through. When light
cannot travel through an object, a shadow is
formed.
The shadow of an ob...
We divide object into three groups depending on
how much light can pass through them.
 Transparent objects, like clear gl...
Some objects are sources of light. We call them
luminous bodies.
 Natural luminous bodies, like the Sun,produce
light.
 ...
When we touch a hot object, our
hand feels hotter.
When we touch a cold object, our
hand feels colder.
Heat goes from one ...
Some materials get hotter or colder more
quickly than others. If we put a piece of iron
and a piece of wood in the Sun the...
The light  alvaro nohales
Upcoming SlideShare
Loading in …5
×

The light alvaro nohales

  • Be the first to comment

  • Be the first to like this

The light alvaro nohales

  1. 1. By : Alvaro Nohales Vigueras 4º B
  2. 2. We need light to see. When we walk into a dark room we need turn on the light.  Light moves in a straight line.  Light moves very fast.
  3. 3. Some objects do not let light through. When light cannot travel through an object, a shadow is formed. The shadow of an object is always formed on the opposite side to the source of light.
  4. 4. We divide object into three groups depending on how much light can pass through them.  Transparent objects, like clear glass bottles, allow light to pass through. We can see objects that are behind them.  Translucents objects, allow some light to pass through, but we cannot see objects behind them very clearly. Some curtains are translucent.  Opaque objects, for example wood and cardboard, do not allow light to pass through.
  5. 5. Some objects are sources of light. We call them luminous bodies.  Natural luminous bodies, like the Sun,produce light.  Artifical luminous bodies, like candles and matches, are man-made.  Non-luminous bodies produce no light. Some for these objects, like mirrors or the Moon reflect the light that reaches them.
  6. 6. When we touch a hot object, our hand feels hotter. When we touch a cold object, our hand feels colder. Heat goes from one body to another. Heat goes from hot bodies to colder bodies. Our food cools on a plate because the heat goes into air.
  7. 7. Some materials get hotter or colder more quickly than others. If we put a piece of iron and a piece of wood in the Sun the piece of iron gets hot more quickly.  Materials like iron, aluminium and glass are conductors. They get hot and cold quicky.  Materials like wood and plastic are insulators. They get hot and cold slowly.

×