Year 8 Systems: REPRODUCTION Chapter 5
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UPDATED 20/05/2016 Year 8 Systems: REPRODUCTION Chapter 5
Key Concepts


  1. 1. Reproductive system structure
  2. 2. Puberty
  3. 3. Sexual Reproduction
  4. 4. Stages of development
  5. 5. Contraception & Reproductive technologies
  6. 6. Sexual Encounters of the floral kind
  7. 7. Asexual reproduction
NAME:

*Science as a Human Endeavour:
  • Contraceptives (5.5)
  • Reproductive technologies research (5.6 & 5.7)
  • Stem Cells (5.8)

Science Quest 8
TEXTBOOK
SCIENCE Quest 8 PRACTICALS / ACTIVITIES
SCIENCE Quest 8
HOMEWORK
OTHER ACTIVITIES/RESOURCES

1
5.1 Private Parts
Outcome: To identify the components of the male and female reproductive system and their locations, and to identify the roles played by each part of the reproductive system
Suggestions:
Group task - Making Models: supply craft materials OR students gather materials from the garden and students build models
Worksheet 5.1
Chapter Opener (Investigation 5.1 and 5.2)
Understanding & Inquiring page 162-163 Questions 1-7, 9

Ed Perfect Female reproductive system
Ed Perfect Male reproductive system
Words to Learn
Testes, scrotum, seminal vesicle, seminal fluid, prostate gland, vas deferens, penis, urethra, ovaries, ova/ovum follicles, fallopian tubes, uterus, cervix, vagina, vulva, clitoris, fertilisation

2
5.2 Why the changes
Outcome: to become familiar with the changes that occur in the body during puberty.
Interactives for puberty:
BBC Puberty interactive
Get the facts puberty (WA)
Worksheets 5.2, 5.3, 5.4
Understanding & Inquiring page 168 Q’s 1-2 & 3-4, 6-9
Class activities – Q 12 and Q 13, page 168
Education Perfect Puberty
Words to Learn
Puberty, hormones, testosterone, oestrogen, progesterone, menstrual cycle, ovulation

3
5.3 Getting it together
Outcome: To become familiar with sexual reproduction and the formation of a zygote at fertilisation
Group task - Cartoon activity: Design a cartoon that shows how Sammy the sperm meets his match
Animated reproductive cycle slideshow
YouTube: Fertilisation
Understanding & Inquiring page 171, Q’s 1-8
Investigate – Q 14 page 185- complete as a cartoon
Education Perfect Pregnancy
Words to Learn
Sexual reproduction, gametes, sperm, ova/ovum, zygote, external fertilisation, internal fertilisation, copulation, semen, meiosis, DNA, epigenetics, identical twins, fraternal twins

4
5.4 Making Babies
Outcome: To become familiar with the process of implantation through to birth.
Animal Research Poster
How different animals produce their young (see Jacplus 5.9, page 190-193, Q’s 15, 16, 21,22)
YouTube: How babies develop in the womb
Worksheet 5.5
Understanding & Inquiring page 174 Q 1-5
Using Data- Q 6
Class activity – Q 13
Education Perfect Birth
Words to Learn
Zygote, embryo, fetus, placenta, amniotic fluid, birth, ovulation, growth, implantation, pregnancy, gestation period, premature, labour, breech, caesarean

5
SCIENCE AS A HUMAN ENDEAVOUR
5.5 To breed or not to breed
Outcome: To become familiar with the methods for contraception
eLesson: Methods of contraception (eles-0127)
Understanding & Inquiring page 178 Q1-5
Class activities Q 6-9
Ed Perfect Contraception
Words to Learn
Conception, contraception, abstinence, vaginal pill, implants, IUD, transdermal patches

6
5.6 Reproductive technologies & 5.7 Reproduction Issues
Outcome: To become aware of the ethical, social, legal and economic issues with assisted reproduction
Media watch: Collect three related stories and present to the class
Worksheet 5.6
YouTube: How IVF works
TED ED How IVF works
Understanding & Inquiring page 185 Q’s 1-3
Class discussion Q 6
Ed Perfect reproductive technologies
Words to Learn
Infertility, miscarriage, surrogacy, frozen eggs, artificial insemination, IVF, genetic testing, designer babies

7
5.10 The sex life of plants
Might skip this section- (reduced time)
Outcome: To become aware of other forms of sexual reproduction (other than animals) in plants
Investigation 5.3 Flower dissection page 197
Worksheet 5.7, 5.8, 5.9, 5.10
YouTube: Sexual reproduction in flowering plants
Understanding & Inquiring page 207 Q’s 3-7
Ed Perfect Sexual reproduction in plants
Words to Learn
Petal, stigma, style, carpel, ovary, anther, filament, pollen, pollination, seed, fruit, germination, seedling

8
5.11 Multiplying by dividing
Might skip this section- (reduced time)
Outcome: To understand other non-sexual methods of reproduction
Investigation 5.5 Asexual Reproduction page 201
Worksheet 5.11
Understanding & Inquiring page 202 Q’s 1-6, 9-10
Ed Perfect asexual reproduction animals
Ed Perfect Asexual reproduction plants
Words to Learn
Asexual reproduction, cloning, budding, fission, spores, cuttings, regeneration, vegetative propagation, parthenogensis










Class Notes

Class notes for Reproduction

Puberty

Animations: Get the facts
http://www.bbc.co.uk/science/humanbody/body/interactives/lifecycle/teenagers/

http://www.getthefacts.health.wa.gov.au/2/123/1/pubertyanimation.pm
Movie on Puberty

https://www.google.com.au/url?sa=t&rct=j&q=&esrc=s&source=video&cd=1&ved=0CBwQtwIwAA&url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DWk4BsO34UAs&ei=voxaVd_qOYnt8AXn_4KIAw&usg=AFQjCNHuiSzRZAvx4nWLtNppQd7L5Kl_1Q


FOur main hormones are responsible for regulating the menstrual cycle. FSH and LH make the ova develop. Oestrogen repairs the lining of the uterus and when this hormone reaches its highest level it causes ovulation. Progesterone continues to repair and maintain the lining of the uterus. If fertilisation and implantation occurs progesterone levels will remain high until the baby is born.


Progesterone and oestrogen are mainly produced by the ovary. LH and FSH are produced by the pituitary gland just under the brain

Plant reproduction
Know the parts of the flower

Pollination is when the pollen lands on the sticky stigma and then starts to gro down the style. The pollen tube grows toward the ovule and when it reaches the ovule the male gamete leaves the pollen tube and fertilises the egg inside the ovule. Eventually the ovule will become a seed while th eovary will become a fruit. Common examples are the apple, oranges

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photo hibiscus.JPG
ovules image_20150616095409.jpg


Asexual reproduction__
Plants can create a baby without using male and female gametes.
They can do this by making an exact copy of themselves. The techniques used are;
1. Cuttings - like the process we used when we made our succulent pots.
2. Layering- this is when a branch touches the ground and starts to grow new roots at that point. It can later be cut off the parent plant. It will have its own leaves and roots.
3. Runners - this is like grass growing in a long rope. Every few centimetres there is a tuft of roots and leaves.
4. budding or fission- in budding a baby grows off the side of the parent. In fission the parent splits in 2 to make 2 babies.

Sexual reproduction
This requires the genetic material from 2 organisms to be combined to make a baby organism. Sexual reproduction occurs in humans, mammals, fish, birds, insects, worms and snails as well as most plants. Some plants and some less complex animals can do both asexual reproduction and sexual reproduction. In sexual reproduction the baby has genetic material from both the mother and father and so has characterisitcs from both parents. This is useful in evolution.