Science at key stages 1 and 2    (Year 5)

• how a scientific idea can be tested and the evidence used to support the idea

• that to stay healthy we need an adequate and varied diet
• to present information about diet and health

• that we need exercise to stay healthy and to maintain our muscles
• that when we exercise, our muscles work harder

• that the heart and lungs are protected by the ribs
• that the muscle in the walls of the heart contracts regularly, pumping blood around the body
• that blood vessels carry blood around the body

• how to measure their pulse rate and relate it to heart beat
• to repeat measurements of pulse rate
• to represent data about resting pulse rate in a bar chart and to say what this shows

• to identify factors which could affect pulse rate and make predictions about the changes
• to plan what evidence to collect including the number of measurements of pulse rate to take and the number of children to use
• to present results in a line graph and explain what these show and whether they support the prediction

• that when humans exercise, muscles move parts of the skeleton and this activity requires an increased blood supply, so the heart beat increases and the pulse rate is faster

• that substances like tobacco, alcohol and other drugs can affect the way the body functions and these effects can be harmful
• that medicines are also drugs and also affect the way the body functions but the effects are usually beneficial though there may be side effects
• that medicines can be harmful if they are not taken according to instructions