This lesson introduces the gametes and the male and female reproductive systems.
Unit: Reproduction and variation
This lesson describes how human reproduction occurs, including the key events of fertilisation and implantation, and also looks at cell division.
This lesson describes the process of gestation, including development of the foetus, risk factors and looking at data.
This lesson looks at the risks of smoking and drinking alcohol during pregnancy, along with exploring data and graphs.
This lesson describes the process of birth in humans and looks at differences in numbers of offspring between different animals.
This lesson looks at the changes that occur in males and females during puberty with a focus on the main events in the menstrual cycle.
Revision lesson. This lesson recaps the processes that occur in the making of a baby, then looks at how the chromosome number is maintained through sexual reproduction.
This lesson looks at the embryologist Jean Purdy, her contribution to fertility treatment and the uses of her discoveries.
This lesson looks at the main parts of the flower and the process of pollination. This draws comparisons with human reproduction.
This lesson follows the previous and discusses the mechanisms of fertilisation and seed formation in plants.
This lesson focuses on an investigation into seed dispersal, with a focus on the different variables that affect seed dispersal.
The lesson looks at the definition of a species, different forms of variation and data on variation.
This lesson looks at an investigation into human variation, focusing on an investigation into variation in human height and handspan. The lesson also focuses on graph plotting skills.
This lesson looks at why variation is important in humans and in different populations of animals and plants.
This lesson recaps the reproduction process in plants and compares it to the reproduction process in humans.
Units in Science
Units in Biology
- Cells, tissues and organs
- Reproduction and variation
- Chemical reactions
- Forces and motion
- Ecological relationships and classification
- Light and space
- Atoms and the periodic table
- Digestion and nutrition
- Electricity and magnetism
- Materials and the Earth
- Plants and photosynthesis
- Forces in action
- Energetics and rates
- Sound waves
- Biological systems and processes