Compass Bearings

Image by Cool Text: Free Graphics Generator - Edit Image

A compass bearing always begins with North or South whichever is closest to the angle

True Bearings

True Bearings

A true bearing is the direction to an object from a point expressed as a horizontal angle measured clockwise from true north

The Sun

The Sun is the closest star to Earth.
The Sun rotates once every 27 days.
The Sun is now a middle-aged star
The Sun formed over four and a half billion years ago.
The Sun’s surface is called the photosphere
The Sun’s diameter is about 870,000 miles wide.
The Sun is 109 times wider than Earth, and is 333,000 times heavier.
Over one million Earths could fit inside the Sun.
Looking directly at the Sun can permanently damage your eyes because it is so bright.
Did you know that the Sun is made out of 92% hydrogen, 7% helium and the rest is other low number gasses?

What is photosynthesis

Image by Cool Text: Free Logos and Buttons - Create An Image Just Like This

One thing we learned in today's class was photosynthesis.. Now What is photosynthesis... Well Photosynthesis is a process that converts carbon dioxide into organic compounds, especially sugars, using the energy from sunlight. Plants use energy from the sun to make food for hem to grow sending out oxygen as they make it.

How does the sun assist with rainfall

Image by Cool Text: Logo and Button Generator - Create Your Own Logo
What I learned and was quite amazed was that the sun assists with rainfall and I wanted to share that to the blog. The sun assists with rainfall because rainfall is created by heat and heat rays from the sun hit the atmosphere and warm air rises causing rain to pour down

Bearings

1. Who thought maths could be so fun? Today it was awesome! We learnt about bearings. There are two different types of bearings: True bearings and Compass Bearings. Bearings are used all around the world and can be used for travelling. Also they are easy to understand. In my perspective they are the best way of finding your way around.

When will the next solar eclipse appear in Australia?

The next solar eclipse in Australia will appear on

Image by Cool Text: Logo and Button Generator - Create Your Own Logo

Here is where it will appear

The Sun

The sun has 3 layers:

• Corona - 1000000° C to 2000000° C



• chromosphere - 4500° C to 1000000° C



• photosphere - 5000° C

Interesting facts about the Sun

Facts:

• The Sun is a Sol
• The planets orbit the Sun
• The Sun is a Big ball of Gas
• You can get Solar energy out of the Sun
• It is a Star, nearest to Earth
• The sun is Bigger than the Earth
• There are 3 Layers in the Sun
• It is the Main Source of life
• It is actually a White Light
• Has Solar flares

Bearingzzzzzzzzzz

Today I learnt about bearings, at the start of the lesson I had no clue what they were talking about. I listened more carefully to my teacher as he was telling me more about bearings. The knowledge was starting to lazer cut into my brain. We learnt about True Bearings and Compass Bearings. An easy way to know what a True Bearing is... True bearings are equivalent to the angle measured clockwise from North. An easy way to know what a Compass Bearing is... Compass Bearings always begin with north or South, whichever is closest to the angle. Hope this helps!

Lunar Tides

Custom Glitter Text






Tides are created because the Earth and the moon are attracted to each other, just like magnets are attracted to each other. The moon tries to pull at anything on the Earth to bring it closer. But, the Earth is able to hold onto everything except the water. Since the water is always moving, the Earth cannot hold onto it, and the moon is able to pull at it. Each day, there are two high tides and two low tides. The ocean is constantly moving from high tide to low tide, and then back to high tide. There is about 12 hours and 25 minutes between the two high tides.

True Bearings and Compass Bearings

Today we looked at True Bearings and Compass Bearings. We used this link to assist:
http://geographyfieldwork.com/Compass/randomMap.html

Today i learnt about the moon and the moon's phases.It takes the moon 1 monthto orbit the earth and it takes the same take to spin on it's axis. The moon has 8 main different phases.

Skewer in a balloon

Today in  class we pushed a skewer into the top part of the balloon. Why did we push it into the top and not the sides?

The skewer stayed in the balloon and the balloon didn't pop. How did it not pop?

We then slowly removed the skewer from the balloon. Watch the clip below. What do you think will happen? Can you explain how this occurred?

This will amaze you!

I thought this is relevant because we are learning about planets and astronomy.

The Moon

Get a Voki now!

What is ratio?

Get a Voki now!

Custom Glitter Text

Today we learnt about Reflections, Translations and Rotations during Maths class.
Check out these links to help:
http://www.mathsisfun.com/geometry/translation.html
http://www.shodor.org/interactivate/activities/TransmographerTwo/

The Tides

Get a Voki now!

In Science class today, we were talking about the moon's 8 main phases. These phases form, depending on the stage of the orbit around the Earth. When the Sun is behind the moon, Earth will not see it and this is called a new moon. If the Sun is shining on only one half, we will see only half of the moon. If the Sun is shining directly at the moon, it is fully lit up, this is called a full moon.

What we learnt today

Get a Voki now!








Here is an example
If there is 1 boy and 3 girls you could write the ratio as:

1:3 (for every one boy there are 3 girls)

What is the Cartesian Plane

Image by Cool Text: Free Logos and Buttons - Create An Image Just Like This





We had a great and interesting lesson of maths as I learnt about Cartesian Plane.

What is the Cartesian Plane
When 2 perpindicular number lines intersect, a Cartesian Plane is formed

Cartesian Plane

Today we had a busy morning, in maths we learnt about the Cartesian plane. I learnt that the Cartesian plane is a mathematical discovery that Rene Descartes discovered. The story was that one night he was in bed and he was watching a fly crawl across the ceiling of his bedroom and he wanted to find a way to describe the exact position of the fly on the ceiling. He began by picturing the ceiling covered with grid lines about 1 metre apart. If he started in the bottom left corner he could describe the position of the fl as three across and two up. He named the starting point at the bottom left corner as the origin. That is how Rene Descartes discovered the Cartesian plane method

Cartesian Plane

The cartesian plane is a way of finding out coordinates. In 1609, Rene Descartes was lying in his bed watching a fly on the ceiling, trying to find it's coordinates. In addition to this he develped the Cartesian Plane. This is quite hard to beleive as the Cartesian Plane helps us a lot with mapping. Without it, we would be lost. A cartesian plane consists of a Y axis and a X Axis. One quadrant only consists of positive numbers and a full Cartesian Plane includes positive and negative numbers.

Custom Glitter Text

We have had a busy time in class this morning. We started in Maths class looking at the Cartesian Plane using directions. The following lesson in Science we looked at the moon, tides, solar eclipses and the Apollo missions to the moon. Some fascinating information was uncovered.
Our search for information started at http://www.brainpop.com/science/space/moon/

The tides occur as a result of the moons pull. The video below has a great example of how this works.

The Cartesian Plane was invented by Rene Descartes, in the 17th centuary. He invented it when he was lying in his bed wathcing flies crawl across his roof and was looking for a way to find the flies exact position, so he imagined his roof was divided in small squares.

E.g. The coordinates of the fly below is 3,2. Because you go across before you go up. (A way to remember this is that you crawl before you walk.

The Earth

In science, from the previous lesson I learnt that the Earth was on a tilt of 23.5 degrees!

I also learnt that we don't feel the Earth spinning because of gravity.

The gravity is pulling us so that we dont fly off Earth!

The difference between the Arctic and the Antarctic

Antarctica has solid land underneath whereas the Arctic circle has no solid land underneath so chunks of ice break off it. The ice berg that hit titanic was from the Arctic Circle. In both the places the ice can be melted and only fresh water will be the result.

How Big is the moon?

How big is the moon? Can you walk around the moon in one day and how much smaller is it to earth?

Positions of Planets

Hi Everyone!

Just a quick question - Does anyone know a rhyme to remember the position of planets in relation to the sun?

Thanks!

Did You Know??

Antarctica has a total of summer and during that time, it is continually day and during winter it has six months on night. It also doesn't have a fixed shape because during summer, it melts it's edges and during winter it freezes the water surrounding it so it is also a part of Antarctica.

Seasons

I learnt that the 23.5 degree axis makes the four seasons. But contries on the equator only have 2 sesons usually called the 'dry' and the 'wet' season.

Earth Days

Today I learnt that the earth has 365.26 days so every 4years the .26 add up together and 1 day adds up so it is called leap years.

Path of a Planet

I now know that the scientific name for the path of planet is 'Orbit'

What I Learnt

I now know how season are made, because of an axis.

i made diagram on the hemisphere

Fast Facts

The Earth is on a 23 degrees tilt.
The Earth takes 365 days to o a complete rotation around the sun.

Earth Rotation

Today in science, we learnt about the Earth and how the seasons of the Southern Hemisphere and the Nothern Hemisphere change. We also learnt how the Earth is on a tilt of 23.5 Degrees.

Solstices

In science today we looked at how the postion of the earth on its axis affects the seasons. There are also times during the seasons where the day is longest or shortest during the year. Here is a picture of them.

Custom Glitter Text



Today in class we commenced our Astronomy Unit - Earth & Space and discussed day and night.

Check out these links we viewed during the lesson too:

Earth Rotation & Revolution around a moving Sun

Leap year

Spin Around the Solar System: The Earth's Seasons

Sample Science Test Question

Custom Glitter Text

This is a question from our recent Science Test.

Multiplying and Dividing negative numbers

Check out this clip we watched in class today. Some easy rules to remember noted at the start

Multiplying and Dividing negative numbers

Lab Prac - Copper Sulfate

From the prac we did, I learnt that when copper sulfate was heated and added in water, the copper sulfate would dissolve in water. As it was cooled the powders would be visible again.
This was very interesting to see as I have never seen it before.

Science Prac: Copper Sulfate

This week in science, we went to the lab. We put some copper sulfate in a testube and added some water. During this prac we added more and more copper sulfate, and put it over the bunsen burner. What went wrong in our group's prac was it bubbled too much and overflowed out of our testube. I think what caused this problem was that we added too much water. Is this the reason?

Custom Glitter Text


During our previous science lesson, I learned about smoke and mist and i found it interesting and I wanted to share my knowledge about somke and mist





Smoke
Smoke is an example of a colloid formed when a solid (carbon) is spread throughout a gas (air).




Mist

A liquid spread throughout a gas may form a colloidal mist... (Fog) is an example

A clip to assist with Adding & Subtracting Integers

Adding & Subtracting Integers

Directed Numbers

Today during Maths class we were looking at multiplying directed numbers. Use the guide here to assist you when executing such problems. We have also been using number lines to assist.

Temperature and Solubility

Custom Glitter Text

Interesting results in this prac. Why did the Copper Sulphate appear entirely disolved, but when cooling, you could clearly see the particle reforming? Check out the video. Your thoughts?

Testing Solubility in water

Custom Glitter Text


The first lab prac we completed today was Testing Solubility in Water. The key here was to ensure a very small amount was placed in the test tubes other wise a greater amount would effect our results.

Copper Sulphate

Sugar and Sand

Adding Directed Numbers

Our Maths lesson today focused on Adding and Subtracting directed numbers. An excellent clip describing both can be loncated at Brainpop

Custom Glitter Text

Adding Directed Numbers

Important: The second number tells us whether to go right (+) or left (−), and how many steps to move. (If there is no sign, we assume it is +).

Subtracting Directed Numbers

Important: Two negatives makes a positive
eg 2 - (-6) = 8

Filtration Prac

Custom Glitter Text

Today we completed the Filtration prac. Prior to this, we demonstrated how filter paper can remove particles from muddy water. The class was amazed by the results.

Question: How can you recover the Copper Sulphate from the filtrate?