A factor that needs to be kept the same to make the investigation valid.

The effects of exercise on breathing and heart rate

Science

Pupils will learn about infectious and non-infectious diseases and the impact of recreational drugs.

Pupils learned to recognise the impact of diet, exercise, drugs and lifestyle on the way their bodies function.

Physical activity and equipment requiring safe use

{{}} variables need to be kept the same to make an investigation valid.

Match up the type of variables to their description when investigating the effect of the exercise on breathing rate.

Set the metronome to 30 BPM and start the stop clock.

Do a jumping jack everytime you hear a beep.

Stop exercising and count the number of times your chest rises in 30 seconds.

Multiply the number of breaths by two and record in your table.

Order the statements to create a method to find your breathing rate after vigorous exercise. 

independent variable (amount of exercise)

dependent variable (heart rate or breathing rate)

Match up the variable to the axis the measurements should be plotted on when drawing a bar chart.

Work out the mean of the following measurements: 67, 69, 68.

To provide more oxygen and glucose to the muscles for cellular respiration.

The provide muscles with fuel to contract.

To remove oxygen from the muscles and body as it is a waste product.

To remove carbon dioxide from the muscles and body as it is a waste product.

Select the reasons why heart rate and breathing rate increase during exercise.

Mitochondria need {{}} and oxygen to carry out respiration.

The job of the heart is to pump {{}} around the body.

True or false. Muscles need energy to relax.

Lucas: "To get oxygen for respiration and remove carbon dioxide."

Who has the best answer to why do people need to breathe?