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Published byGervais Tyler Modified over 9 years ago
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Do now! Can you stick the target sheet in for the new topic please?
Can you fill in the first column? Do now!
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Word sheets Can you stick the word sheets in please?
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True or false? You can’t get pregnant the first time you have sex.
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True or false? You can’t get pregnant the first time you have sex. FALSE
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True or false? Sperm can live for up to 3 days inside a woman’s body.
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True or false? Sperm can live for up to 3 days inside a woman’s body. TRUE
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True or false? You can’t get pregnant if you have sex standing up
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True or false? You can’t get pregnant if you have sex standing up FALSE
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True or false? Boys start to have wet dreams when they reach puberty
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True or false? Boys start to have wet dreams when they reach puberty TRUE
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True or false? Condoms help to prevent the spread of sexually transmitted diseases.
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True or false? Condoms help to prevent the spread of sexually transmitted diseases. TRUE
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True or false? Girls should not swim or play sport during their period.
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True or false? Girls should not swim or play sport during their period. FALSE
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True or false? A baby girl has eggs already inside her.
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True or false? A baby girl has eggs already inside her. TRUE
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True or false? Taking the pill means you can’t get pregnant.
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True or false? Taking the pill means you can’t get pregnant. FALSE
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True or false? You can’t get pregnant during a period.
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True or false? You can’t get pregnant during a period. FALSE
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True or false? The pill stops you from getting diseases
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True or false? The pill stops you from getting diseases FALSE
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Nottingham Forest won the UEFA Champions league in 1979 and 1980
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Nottingham Forest won the UEFA Champions league in 1979 and 1980
TRUE
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Let’s start at the very beginning
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Sexual reproduction Requires two parents, a male and female.
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Sexual reproduction Both have sex organs
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Sexual reproduction The sex organs make sex cells (gametes)
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Sexual reproduction In male animals the sex cells are called sperm, made in sex organs called testes (testis is singular) I can stay alive in the vagina for up to 3 days waiting for an egg to be released.
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Sexual reproduction In female animals the sex cells are called eggs, made in sex organs called ovaries. An egg is released from the ovaries about every 28 days. This is called ovulation.
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I will die after about 2 days if not fertilised.
Sexual reproduction During sexual reproduction the sperm and egg join together (fertilisation) I will die after about 2 days if not fertilised.
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External fertilisation
In some animals fertilisation takes place outside the body.
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External fertilisation
In some animals fertilisation takes place outside the body. Some sperm may get washed away so I produce a lot of eggs so at least some get fertilised.
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External fertilisation
In some animals fertilisation takes place outside the body. I don’t look after my eggs either so many get killed before they have chance to develop into fish.
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Let’s try some questions!
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