Reproduction Worksheet - KS3 - Beginner

Reproduction worksheet for KS3 (Key Stage 3 / Year 7-9 (Ages 11-14)). Beginner level science practice, aligned to the UK National Curriculum. Print-ready with answer key included.

Science•Key Stage 3 / Year 7-9 (Ages 11-14)•Reproductionbeginner

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Reproduction: From Puberty to Pollination

Key Stage 3 Science | Years 7–9 | Beginner

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Instructions: Work through the activities in order. Use the word bank where provided, and answer in the boxes using clear scientific terms. The questions cover human reproductive systems, puberty, and reproduction in flowering plants.

Human Reproductive Systems

Use the word bank to complete each sentence. Each term is used once. Think about the role of each organ in reproduction.

Word bank: ovaries, testes, sperm ducts, uterus, vagina

1. The __________ produce sperm cells.

2. The __________ produce egg cells and the hormones oestrogen and progesterone.

3. The __________ carry sperm from the testes towards the urethra.

4. A fertilised egg may implant and develop in the __________.

5. The __________ is the passage that connects the uterus to the outside of the body.

From Fertilisation to Birth

Choose the most accurate answer for each question. Fertilisation is the joining of the nuclei of a sperm cell and an egg cell.

1. Where does fertilisation usually happen in humans?

2. What is formed when a sperm cell fertilises an egg cell?

3. Where does the embryo usually develop during pregnancy?

4. What is the name for the period during which a baby develops before birth?

Understanding Puberty

Select the best answer for each question. Puberty is a gradual process, and changes happen at different times for different people.

1. What causes many of the changes that happen during puberty?

2. Which hormone is mainly responsible for many male secondary sexual characteristics?

3. Which change commonly occurs during puberty in all sexes?

4. Which statement about puberty is correct?

Flowering Plant Reproduction

Use the word bank to complete each sentence. Use each term once. Remember that pollination happens before fertilisation in flowering plants.

Word bank: anther, stigma, pollen, ovule, seed

1. The __________ produces pollen grains.

2. The __________ is the part of the carpel that receives pollen.

3. The transfer of __________ from an anther to a stigma is called pollination.

4. After fertilisation, an __________ can develop into a seed.

5. After fertilisation, the __________ develops from the ovule.

Pollination in Action

Read the information and answer the questions using evidence from it. Insect-pollinated flowers often have features that help attract insects and transfer pollen.

A bright flower has a sweet scent and nectar. Its anthers are positioned where visiting insects brush against them. When an insect visits another flower of the same species, some pollen may rub onto that flower’s stigma.

1. What is the name of the process in which pollen is transferred from anther to stigma?

2. Name one feature in the passage that may attract insects.

3. How might pollen move from the first flower to another flower?

4. What must happen to a pollen grain on the stigma before fertilisation can occur?

Answer Key

Activity 1: testes ; ovaries ; sperm ducts ; uterus ; vagina

Activity 2: Oviduct (fallopian tube) ; An embryo ; Uterus ; Gestation

Activity 3: Hormones ; Testosterone ; Growth spurt ; It is a gradual process and timing varies

Activity 4: anther ; stigma ; pollen ; ovule ; seed

Activity 5: Pollination ; Bright colour, sweet scent, or nectar ; An insect carries pollen from the anther of one flower to the stigma of another flower of the same species ; The pollen grain must grow a pollen tube down the style towards an ovule