The surface is the top or outside layer of an object or material.

Friction is a force that acts between surfaces.

A variable is something that can be changed, measured or kept the same in an investigation.

In a conclusion, scientists explain what the results show and what they mean.

Friction: do and review

Science

In this Forces and simple machines unit, pupils learn that air resistance, water resistance and friction push back against moving objects. In this Forces unit, pupils will build on this knowledge to accurately describe and explain the actions of forces in a range of situations.

In the Simple forces including magnets unit, pupils learnt to compare how things move on different surfaces. In this Forces including simple machines unit, pupils will build on this knowledge to identify the effects of air resistance, water resistance and friction, that act between moving surfaces

Forces including simple machines

Physical activity and equipment requiring safe use

Starting with the least, sort these surfaces in order of increasing amount of friction created when walking across them.

Which of these is **not** a type of graph?

In which part of an investigation should you summarise the results?

to help them make predictions for further investigations

data showing the relationship between two variables

Which of these types of data are best shown in a bar chart?

What is the name of the force that acts between objects that are moving, or trying to move, across each other?

How many variables should you change in a controlled investigation, such as in a comparative or fair test?

The amount of force applied to pull the glove.

If the enquiry question is, 'Do different gloves create different amounts of friction?', which variable should be changed?

Which of these is **not** a way in which scientists present results?

sorting food into healthy and unhealthy groups

measuring the temperature of a hot drink 

comparing which type of paper makes the fastest aeroplanes

Match the investigation type to the activity.

In the opposite direction to the movement.

In which direction does friction act on moving objects?

Content guidance

Risk assessment required - equipment

Adult supervision required

Starter Quiz