Science Infoblog

Use information from this document to answer some questions

First, a very boring movie clip illustrating circuits that have been connected in series and parallel. It shows some differences between the two. There are similarities between the circuits also.

 
Have a look at the worksheet, draw up a Venn diagram and identify the similarities and differences between the two types of circuit:
.

Check out a possible set of answers:

 The Challenge:

Use the knowledge you have gained in this topic and plan a video that will help next years class to learn about series and parallel circuits.

Your video should contain reference to as many of the similarities and difference you have learned about.

• It must be informative
• It should grab the viewers attention
• It could involve a student demonstration (but only if you don’t mind being on YouTube)
• The movie may be a sequence of slides, you could use Animoto but see me first.
• It could be humorous
• It could be planned inside the classroom and the movie shot as homework at home

You will need a camera that can take short video clips. If you use a mobile phone you need to be able to upload for editing. Get creative. Scientists are artists who really understand their medium.

You can work in groups of a maximum of four

Good luck

………cool video.

Watch the video of work we have done in class and check your knowlege by doing the quiz.

Stop Press.

Patrick wins a Mars bar for the first homework completion. Another mars bar goes to the first person with all correct answers.

…another couple of Mars bars for Cici and Alex because they got the work done quickly.

Still waiting for a completely correct set of answers.

Ihumatao.

The remains of two fossil forrests can be found on the foreshore and in the cliffs at Ihumatao.

There are two fossil forests at Ihumatao both destroyed in different circumstances over a period of 100,000 years.

The oldest a mature Kauri forest had trees varying in diameter from  from 70 centimetres to3 metres. Some of the fossil Kauri trees must originally have been giants rising more than 20 metres into the air before branches sprayed out. What killed the first forest?

It was probably a slow death. Logs and stumps from this forest are found in thick peaty sediment. This may have occurred through natural swamp formation in the area with the forest slowly drowning. Logs and stumps are exposed in cliffs at the top of the beach and on the foreshore where the dark sediment has eroded.

Over time the conditions that produced the swamp changed and the land dried sufficiently for another forest to flourish. Trees found growing in this rich peaty soil included rimu, miro and hinau. About 50,000 years ago disaster struck again. Nearbye Maungataketake exploded into life. Yellowish to brown volcanic ash rained down on the trees  stripping leaves from branches and branches from trees. The explosive force of  eruptions snapped trunks in two. The remains of the forest was buried in ash and lava bombs .