## Science 7-9

We have been looking at human influence on the climate. This has tied back to work we did in geography earlier in the year. The pupils have been developing their own questions on the topic, and have chosen to focus on how to reduce carbon dioxide emissions in the generation of electricity.

The work on the Earth Science has included work on the rock cycle, different types of rocks and their properties, as well as the processes that result in the breakdown of rocks. We will be moving on to the carbon cycle and looking at how humans have been affecting this in recent times.

This week has seen us complete the unit on ecosystems and review our learning in preparation for a test next week. We have also just started an earth science unit and are currently looking at an experiment and trying to figure out what was actually going on.

Current work has been focussing on energy transfer and food chains or food webs. The pupils have been working out how efficient energy transfer is, and have been learning a lot of new technical terms associated with ecosystems

As we continue looking at forces and friction the pupils have the opportunity to design their own experiment to find out one factor that affects the friction force between two objects. We will take time to write the hypothesis, prediction, variables and method.

This week we have looked at friction and how it is important for movement. We have begun to consider the factors that affect friction.

This week has begun our investigation of forces. We have identified many different types of forces and are developing our understanding of what forces do.

This week we will look at how to deal with anomalous results. We will also look at how to conclude experiments and see how results can be related back to our scientific understanding. We have also played a simple game to check our understanding of graphing.

This week we have looked at our speed in timing by carrying out reaction tests on the web and on our computers. We have found that it takes us around 0.15 to 0.2 seconds to respond to a stimulus. The actual timings also have variations. This has been used to show us why we need error bars on our graphs. We have spent time adding elements to the graphs including error bars and lines of best fit. We have also considered variables in experimental work, and are developing our abilities to identify independent, dependent and controlled variables.

We are taking more time to consider graphing results of an experiment carried out with height and timing. This has helped us develop our understanding of errors and the natural variations that occur when timing events.

This week we have looked at the theory connecting the results to the graphs that we have drawn. We have looked at how to change equations in order to extract data from the graphical plot. We will complete our look at Ohm's Law and consider the uses of series and parallel circuits this week.

We have looked at the relationship between potential difference measured in volts and current measured in amps. The pupils have carried out another simulation experiment and collected results. They are using these to construct a graph using Excel, as well as inserting a line of best fit.

We have begun to build circuits, and to consider what happens to the voltage, and current when a several bulbs are put into a circuit in series. We have also been learning where ammeters and voltmeters are placed in circuits so that they record accurate results

We have started looking at conduction and students have designed an experiment to test if a material is a conductor or non conductor. Work has also taken place to learn the symbols associated with the components in a circuit.

We have looked at the uses of static electricity, and also where it is hazardous. We have also raced cans using only the electric field generated by a statically charged ruler.

This week we start looking at static electricity and will move on to electrical current. Students have been introduced to the ideas of charging by friction, conduction and induction.

This week we have also carried out an experiment to look at electromagnetism. We have also looked at what makes a fair test, recording and plotting experimental results.

We have also taken a test on the material covered this term.

We have also taken a test on the material covered this term.

Below is a document with the vocabulary that pupils would be expected to learn from this science unit.

This week we begin by looking at the Earth's magnetic field. We will consider how it is formed, and why it is important to us. The evidence for the magnetic field flipping will also be looked at. The mix for this is here: Earth's Magnetic Field

Magnetism is the next part of our development in physics. We will look at:

- why some materials are permanent magnets
- how to magnetise materials - Magnetising Mix
- magnetic domains and fields - Magnetic fields
- the Earth's magnetosphere

The questions generated have a starting point for their investigation

https://mix.office.com/watch/brf20se38w2z

This week we have inquired about space interests

https://mix.office.com/watch/1wcbvswjhmn4a

We are looking at Astronomy, and our first lesson looked at the effect of the tilt in the Earth's axis.

The main lesson points are included in the mix file, which is linked below.

mix.office.com/watch/1f7e86tfs7yry

https://mix.office.com/watch/brf20se38w2z

This week we have inquired about space interests

https://mix.office.com/watch/1wcbvswjhmn4a

We are looking at Astronomy, and our first lesson looked at the effect of the tilt in the Earth's axis.

The main lesson points are included in the mix file, which is linked below.

mix.office.com/watch/1f7e86tfs7yry