The final Brian's doings of the week...answers on Saturday..

The Value of Months
If March = 43 and May = 39, then by the same logic, what does July equal ?
Rain
Charlie's science project was making a rain gauge to measure the amount of rain for one week.
It rained each day that week, starting on Monday, and each day the amount of rain in the gauge doubled.
By the following Sunday, the rain gauge was completely filled.
On which day was the rain gauge half-filled?

Think back to the experiment Mr Rhys-Jones did with water and weight today..

Upthrust is a force that  exists in liquids, such as lakes, oceans, swimming pools and even cups of tea! 
It is a push that always goes straight up, against the direction of gravity

This boat has gravity pushing it down, and the upthrust of the water pushing up.

Because the forces are balanced, the ship floats.

What would happen if the forces weren't balanced?

 

If you let go of your drinking straw, it floats up and sometimes tries to bob out of the glass! Another example of upthrust !

  

Salty seas have more upthrust.  It’s much easier to float in a sea than in a swimming pool.

 The larger the surface area of an object, the more the upthrust

 Imagine trying to hold this large beach ball, and this small tennis ball, under the water.  Which would be easier ?

            

 That’s why swimmers float on their backs, not upright in the water

 You can stay afloat like this, but it’s harder work, called “treading water”. If you stopped moving your feet you’d sink, because the force of gravity would be stronger than the upthrust.)

Submarines are specially designed to sail underwater. 

They fill up with water which makes them weigh more.

More weight = more gravity.

The gravity is greater than upthrust, so the submarine sinks.

All very interesting, but so what?

. 

UPTHRUST is the reason that your objects weighed less in the water than in air!

Do some science revision..!

http://www.bbc.co.uk/schools/ks2bitesize/science/physical_processes/forces_action/read1.shtml

http://www.bbc.co.uk/schools/ks2bitesize/science/physical_processes/friction/read1.shtml

http://www.highlandschools-virtualib.org.uk/primary_curriculum/forces.htm
Some excellent revision  here...have a look at ALL ABOUT FORCES

The Coast - our new geography topic. What can you find out about the work we did today through research?

The oceans of the world shape our coastlines. Every day the effects of the sea have an influence on our coastline.

 Three major forces are at work in the sea.
 Currents                Tides                     Waves  

            Which of these statements describes each title above?

1. A volume of warm or cold water moving in one direction within the ocean.
2. Changes in the sea level which happen every day. They are controlled by the moon's gravitational pull on the Earth.  
3. Formed as the wind blows across the sea's surface they carry sand and pebbles when they are close to the beach.

Brian has been eating oily fish for breakfast - great for the brain - and thought of some new breakfast  doings...

There's Something Fishy Going On..!
Although each of the following sentences sounds okay at first, there's
really something wrong with each one of them. Read the sentences and explain why each one is a little "fishy."

1. No one goes to that restaurant any more because it's too crowded.
2. I'm glad I don't like spinach, because if I liked it, I'd eat it, and it tastes awful.
3. If you can't read this sign, ask for help.

Toast For Three
Dad is preparing breakfast for his three children — Dan, Ed, and Frank.
Each boy wants Dad to toast 1 slice of bread for him.
The family's toaster holds only 2 slices of bread and toasts only 1 side at a time.
The person who toasts bread has to toast one side of a slice of bread, take out the slice, turn it over, and put it back in the toaster to toast the other side.
It takes exactly 1 minute to toast 1 side of a piece of bread.
Dad has figured out how to toast 3 slices on both sides in only 3 minutes.
How does he do it?

Homeworks

Remember to learn at least 5 of your spellings and meanings per day - use the syllables to help you recall the word sound as you spell it...!!

You should be reading every day...

If you can, bring in a photograph to school tomorrow of youself and your mum ! SECRET !

If you have the opportunity to use the internet, see if you can find and print/save a good example of

• a cliff
• a sandy beach
• a pebble beach
• a rocky beach
• a headland
• a stack
• marshland
• A cave
• an arch

These are all features of the coastal environment - our new topic for geography

One of this weeks Brian's doings - logical no?

Shall We Dance?
Explain why or why not.
Statement 1: All dancers are graceful.
Statement 2: Some rocket scientists are graceful.
Statement 3: Therefore, some rocket scientists are dancers. Does the third statement follow logically from the first two statements?

Who Rocked the Boat?
Three boats — one red, one blue, and one yellow — were out on the river this morning. By reading the following clues, can you tell the color and type of each boat, who is on each boat, and which country the people come from? Write your answers on a chart like this one:
                 Kind of boat     country         colours
Man
Woman
Kids

Clues -
The woman is not in a yellow boat and is not from France.
The red boat is not from Italy.
The kids are in a blue boat, but they are not from Italy or Sweden.
The man and his dog are on a yacht with an Italian flag.
The sailboat is from France, while the canoe is red.

Paper cranes - Our messages for Japan

Inspired by the story of Sadako (below), Year 6, and the the rest of the primary school hope to make paper cranes to send to Japan. The decorated cranes will bear messages of support to all those who have been  affected by the terrible recent events.
We hope to make at least 1000.

http://www.youtube.com/watch?v=FSijU52XJ7w

Sadako and the Thousand Paper Cranes is a non-fiction children's book written by American author Eleanor Coerr and published in 1977.
This true story is of a girl, Sadako Sasaki, who lived in Hiroshima at the time of the atomic bombing by the United States. She developed leukemia from the radiation and spent her time in a nursing home creating origami (folded paper) cranes in hope of making a thousand of them. She was inspired to do so by the Japanese saying that one who created a thousand origami cranes would then be granted a wish. Her wish was simply to live. However, she managed to fold only 644 cranes before she became too weak to fold any more, and died shortly after. Her friends and family helped finish her dream by folding the rest of the cranes, which were buried with Sadako. They also built a statue of Sadako holding a giant golden origami crane in Hiroshima Peace Park.
Now every year on Obon Day, which is a holiday in Japan to remember the departed spirits of one's ancestors, thousands of people leave paper cranes near the statue. On the statue is a plaque: "This is our cry. This is our prayer. Peace on Earth."

Make your own lift

Scince tricks - lift
http://www.layhands.com/ScienceTricks/Page8.htm

Forces Sunday March 27th

1. What is a force?
2. What is gravity?
3. What causes weight?
4. Why do objects weigh less on the moon?
5. Why do things weigh more on Jupiter?
6. What is lift?
Today I will know the answers to these questions
1. What is friction
2. What causes friction?
3. What is up-thrust?
4. What is the difference between upthrust and lift?
5. What is air-resistance?
6. What forces are acting on a boat and on a car?

SCIENCE - FORCES

Most people use the word weight when they really should be talking about mass.
The ideas are often confused.
Jack has Mass and weight
Mass tells us how much material we have in our body
On Earth, every Kg is pulled down by gravity with a force of 10 N
What happens to Jack's weight on the moon?The mass of an object NEVER CHANGES no matter where you take it.
An objects weight will change if the place has a different force of gravityIF Jack went to the moon his weight changes. The moon has a pull only one sixth that of Earth                                   He still contains the same amount of material. If Jack could travel to the moon his mass (40Kg) would be the same as on Earth.
Weight is measured in Newtons (N)
Mass is measured in grams (g) and Kilograms (Kg)
Weight  tells us how strongly the force of gravity is pulling on Jack's mass