Week 5 Lesson Objectives
Using the Video Summary sheet provided, Paraphrase (that means to say in your own words) the main points of the video, and write down any questions you might have.
Please also watch this video
What we did in class
This week we looked at the cross section of a flower and then examined the parts of a flower under a microscope.
When we cut the pistil, which is the female organ of the flower down the middle we could see that the style was actually a long tube that went down into the base of the flower. This is where the beginnings of seeds are waiting to be fertilised before they can fully develop.
We could see the sticky stuff that was on the end of the pistil. Mrs Marini explained that this part is called the stigma (think sticky stigma) and it's job is to collect the pollen.
The pollen comes from the male organ of the flower - the stamen (hint: stamen has the word MEN in it). The end of the stamen is called the anther and it produces the pollen.
Flowers have male and female parts so they can reproduce and make seeds to grow more plants.
After examining the parts of the flower we completed a labelled diagram of a flower cross section.
Literacies of Science
Why do we use a cross section?
We use a cross section to show the inside of an object.
What does a cross section include?
A cross section includes a title, a drawing and an indication of scale. The main features are labelled and lines connect the label to the feature.
Words Worth Knowing
a straight cut through something to show what is inside
the female organs of a flower (stigma, style, ovary, ovule)
the male organs of a plant (anther, filament)