Light pollution is unwanted human-made light that has a negative effect on the environment.

An urban area is an area where many people live and work close together such as a city or town.

Rural areas are found in the countryside. They are areas with fewer people and homes.

The population of a place is all of the people living there.

A campaign is a planned set of activities that people carry out in order to achieve something.

Light pollution (non-statutory)

Science

Light and seeing

Light sources

Protecting our eyes from the Sun: plan

Protecting our eyes from the Sun: do and review

Opaque, transparent and translucent

Making shadows

Shadow size: plan

Shadow size: do

Shadow size: review

Reflected light: plan

Reflected light: do and review

In this Introduction to light and shadows unit, pupils learn that we need light in order to see and that light is reflected from surfaces. In the Light and how it travels unit, they will build on this knowledge to learn that objects are seen because they give out or reflect light into the eye

In the Everyday materials unit, pupils became familiar with the names of common materials and properties such as opaque and transparent. In this Introduction to light and shadows unit, pupils will build on this knowledge to recognise that shadows are formed when light is blocked by an opaque object

This unit explores the nature of light, recognising that light is needed to see and that dark is the absence of light. It covers how light reflects and shadow formation. The unit emphasises practical tests, observations, accurate measuring, and using evidence to support findings.

Introduction to light and shadows

The presence of too much human-made light at night is called ...

Light pollution can interrupt human {{}}.

Which of these images shows an urban area, where a greater population will create more light pollution?

Which of these images shows a rural area?

What is the name of some areas of the UK that have little or no light pollution?

To increase light pollution in rural areas.

To reduce the number of nocturnal animals.

To improve our view of the night sky and help animals sense when it is night.

Why do some organisations campaign to tackle light pollution?

Something that produces its own light is called a light {}.

Which of these is a natural light source?

Which of these is a human-made light source?

Animals that sleep during the day and are awake during the night are called {}.

Humans can see in the dark once their eyes have got used to it.

Humans can see the same when it is dark as when it is light.

Exit Quiz

The presence of too much human-made light at night is called ...