Week 7 Sexual Reproduction and Classification
Task 1 Flower Dissection and gathering of data
- Label the male and female parts of a “typical flower”. This is the pattern for most flowers.
- For each example complete the following;
- Write the name of the flower, eg Callistemon (Bottlebrush), Melaleuca (TeaTree), Grevillea, (Spider Plant), Hibiscus, Agapanthus, Acanthus, Ricinocarpus (Wedding Bush)
- Do a biological drawing in pencil of one flower. Show a scale bar
- Label the following parts; petals, sepals, stigma, style, ovary, anther, filament, pollen
- Dissect the flower by cutting a longitudinal section to reveal inside of the style and ovary. Observe beneath the dissecting microscope
- Label the stigma, style, ovary and ovules. Inside each ovule is the ovum.
- Dissect the anther to reveal the pollen grains. Observe beneath the dissecting microscope. Inside the pollen is the sperm.
- As you complete the dissection gather data about each flower and enter it on the “Flower Observation Spreadsheet”. You will use this data to construct a dichotomous key and then key some unknown flowers.
Task 2 Thing Science Lesson 13 Probability
Task 3 - Thinking Science Lesson 14
Does the size of the bean seed affect the size of the shoot that grows when the seed germinates?
Wednesday 29 November 2012