An object is something you can touch but something that is not usually a living thing.

A shadow is a dark shape that is formed when an object blocks a source of light.

Distance is how far away something is or how far an object has travelled.

Something that is a light source produces its own light.

The results of a test or enquiry is what happened and what was found out.

Shadow size: review

Science

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

Introduction to light and shadows

To find out things they don't know using secondary sources.

Why do scientists make observations and measurements?

What do we call the information or data that is collected in a fair test investigation?

To decide what happened and explain what they have found out.

To say what they think will happen in an investigation.

To follow instructions for how to carry out an investigation.

Why do scientists review the results of an investigation?

Which suffix do scientists use at the end of words to compare how one thing affects another thing?

When an object is moved nearer to a light source, the object's shadow gets ...

Why does an object's shadow appear larger when it is nearer to a light source?

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

Which equipment can be used to measure the distance between an object and a light source?

The distance between the object and our eyes.

The distance between the object and the light source.

The distance between the object and the ruler.

What affects the size of an object's shadow?

What goes at the top of each column in a table?

Starter Quiz