THURSDAY 14TH

NATURAL

Anwers to Thursday 7th task (Pg 71)

EX 3.

Light travels in straight lines and very fast.

EX 5.

The sentence is false. The moon is not a natural light source. The moon reflects the sun´s light.

Today we are going to study the reflection of the light.

Reflection happens when light heats an object and bounces back.

• When light hits a smooth surface all the rays reflect in the same direction as we can see in this picture.
  
• When the light hits a rough surface all the rays reflect in different directions as we can see in this picture.
  

For example: 

The picture at the top shows a reflection on a smooth surface. 

The picture at the bottom shows a reflection on a rough surface and it is not very clear.

Watch the following video and read on page 72 ONLY the sections reflection, mirrors and lenses.

Then do the exercises 1 and 2  on page 73 in your notebook.

When you finish send the exercises it to my email please.

Por favor recordad que tanto esta tarea como la tarea de social del martes tenéis que enviármelas al email. Podéis mandarme las dos juntas.
Muchas gracias.