Joseph Bechara!!!

I have continued this journal part of practical part 2 as you saw in journal 2.

The second part of this practical was to get 30 sheets of A4 paper and split them into two halfs which was 15 sheets each side. We then had to put the 15 sheets side by side of each other and then just push them together to show and see which plate collides. Then the other part of that pract was to push it against our science text book and that showed us that the sheet of papers were rising higher and higher as we pushed it against the book

Thank you

In this lesson we did a practical which was into to lesson. I will talk to you about the first part of the prac and the 3 journal i will tell you about the othere half of the practical.

So in this practical we got an A3 paper and cut it down length ways to split it into two halfs. After we did that, we coloured in every 5cm a different colour. Then we had to get two desks and join them together and pull the piece of paper down the middle to show how the tectonic plates work which was interesting.

Secod part of prac in the next journal

In todays lesson I learnt how to make the beaker filled up with cold water hot and to add some patasium into it so we could see the stain that it reacts to.

Also we did another one which was the same way of making the water hot, but we had to place an ice pack on top of the water and drop the crystal down and the stain had stayed upright to the beakers top.

1. Analyse why red sunsets can sometimes be more impressive when there is more dust or pollution in the air than usual.

Well i think that red sunsets can sometimes be more impressive when there is more dust or pollution because this dust and pollution can give off a different colour to a normal colored sunset.

1. Describe what happens inside water droplets to cause a rainbow and explain how you can tell whether a rainbow is a primary or secondary.

A collection of suspended water droplets in the atmosphere serve as a refractor of light and the water represents a medium with a different optical density than the surrounding air. Light waves then refract when they cross over the boundary from one medium to another.

Investigate the two types of sight defect- long-sightedness and short sightedness.

Find the following information:

1. what causes the defect

What causes the defect is that when you look at something at a long distance your eyes start to blur and you get a less clear vision.

1. the symptoms displayed

The symptoms displayed are blurieness and sore eyes as you strain them to look closer or further than you can.

1. Propose what sort of lens may be used to correct each vision.

Maybe the lens called bi – concex because it gives you an oval shape which our eyes are similar to that shape of lens.

Fibre optic technology offers many advantages when used in medical applications.

1. describe how optical fibre may be used in medical applications

They can be used in medical applications by have flexible tubes in them to have a similer content to the digestive system.

1. identify the traditional medical techniques that optical fibres might replace

They provide doctors with images of the stomach and intertinal lining.

1. Evaluate the benefits of fibre optic technology to medicine

Tumours that can not be treated can be treated by this fibre optic to help others.

Another theory that i found was the Accelerating universe which suggests the universe may be slowing down due to gravitational forces in space. This force is also known as the dark energy and it allows the universe to expand because of its power to overtake gravity forces.

The theory I made up is that the universe will expand of the years by the forces of gravity that is making the universe expand slowley due to gravity forces. It will keep expanding more rapidly due to the ‘dark energy’ and there is a long way before we know why the universe is expanding by these gravity forces which is making the whole universe expand just by the gravity force.

Open universe has a low mass and it will keep on expanding forever by a decreasing rate. It also refers to a universe which has no physical or practical barriers to it’s continued expansion. Eventually the galaxies and stars will become to shine and will be a dark and very cold place.

1. How old is the universe? It is between 15 and 20 billion years old.

2. When did the universe inflate? 13.7 billion years ago

3. It is so lucky because if it did totally destroy there could be no earth or any other planets in the universe.

4. Acid – water – iron zinc

5. Hydrogen is so important because it consists in every element in the earth and is a proton and electron

6. The hydrogen nucleus has one single positive charged proton and one negative charged electron

7. It was opaque because of the early blocking and the release of the light like, also at different speeds in different regions.

8. The effect of the fog is that the its stronger for more energetic gamma-rays.

9. That the big bang exploded many years before the earth formed.

10. COBE stands for COsmic Background Explorer.

11. Galaxies are formed by the colloapse of protogalactic cloud and stars are formed from nebulae.

Hubble’s involvement in space research.

The Hubble Space telescope took over 270,000 pictures of earth in space for scientists and pictures of other solar systems.

What the space telescope does

The space telescope take pictures of others solar systems and galaxys that are far far away from earth and brings back the pictures to scientists.

Where it is

It is in space taking photos for scientists.