Biology.

Interactive Cambridge IGCSE Biology labs aligned to Biology 0610 and the Biology objectives in Co-ordinated Sciences 0654.

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Selection and evolution

Change an environmental selection pressure and follow how survival and reproduction alter trait frequencies across generations.

1 lab · IGCSE 0610 / 0654

Guided

Selection Pressure and Trait Frequency

Change the seeds available to a population of birds, run generations, and watch which beak depths survive and breed as the spread of the trait shifts.

Gas exchange in humans

Set the exercise and read breathing depth and rate off the trace yourself, then test why the lungs answer harder work with deeper, faster breaths.

1 lab · IGCSE 0610 / 0654

Guided

Exercise and Breathing

Read a breathing trace at rest, jogging and sprinting, measure how the rate and depth of breathing change with exercise, and test why the body breathes harder.

Respiration

Work a muscle, run the recovery and follow lactic acid through the blood to the liver to see how long the oxygen debt takes to repay.

1 lab · IGCSE 0610 / 0654

Guided

Oxygen Debt and Recovery

Sprint until the muscles run short of oxygen, then watch the recovery: follow lactic acid from muscle through the blood to the liver and see why breathing and heart rate stay high.

Transport in plants

Water the plant, cut the root, stem and leaf, and find for yourself which tissue carries water up and which carries sugar away.

1 lab · IGCSE 0610 / 0654

Guided

Transport in Plants

Water a plant with coloured water and cut its root, stem and leaf to see which tissue carries water up, then trace where the leaf’s sugar goes as the seasons change what each part needs.