Natural Science · 6.º de Primaria · Ficha de repaso
Unit 3: We embrace adolescence
The reproductive systems, sex cells, fertilisation, pregnancy, birth and the changes in adolescence.
6.º de Primaria · Natural Science · Unit 3: We embrace adolescence · Ficha de repaso
Sex cells
- egg cell (ovum)
- female sex cell, made in the ovaries
- sperm
- male sex cell, made in the testicles
From fertilisation to birth
Fertilisation: an egg cell and a sperm join. The embryo grows in the uterus during pregnancy (about 9 months) until birth.
Adolescence
Puberty brings physical changes (growth, body hair, voice) and emotional changes. Everybody changes at their own pace.