Weekend in the Pic du Midi

This  weekend I went to the Pic du Midi. I was sleeping on Saturday there.

There are very big telescopes. The telescope domes can move. I moved one dome.

We saw the Moon, Jupiter and Saturn. We saw it in a little telescope and a big telescope.
 It was very cold and all the mauntains were full of snow.

Investigating Viscosity

Today we did another investigation about the viscosity of different liquids. 

Last time we dropped a marble into the liquids, but we found that timing accurately was really difficult because the marble fell through some of the liquids very quickly.

We talked about how we could change the investigation, perhaps gaining more accurate results.  One of our ideas was to use a lighter object as we thought that it would travel through the liquid more slowly.

So, we have tested our prediction using a dice instead of a marble.

Here are some photos

We took turns pouring liquids, dropping the dice, timing the fall and taking photographs.

Here are some videos of us doing our Science work:

Here is a table of 4Bs results.  You can see the difference in the timings between dropping the marble and the dice.

We calculated that the dice fell about 3 times slower in thicker liquids like shower gel and washing up liquid but took about twice the time to fall through thinner liquids like oil, lemonade and orange!  We are still discussing the milk result... Why is it 3 times (it is thin like water)?  Did we test this accurately enough?

Whatever our decision about the milk, in Year 4 we have concluded that lighter objects fall slower than heavier objects through all liquids.

(We didn't test the ketchup because the marble is still sitting on top of the liquid after the first investigation - so we knew a lighter one would not be any different!)

kirby clay collection

This weekend my mum bought me some rainbow coloured plasticine. At first I had no idea what to make, until I decided to make a Kirby collection. My collection includes Kirby (of course) Waddle dee (Kirby's best friend) Meta Knite (Kirby's arch rival) Claycia (a giant hand with one eye that wants to steal all the worlds colour) an M tomato, a set of cherries, a pineapple, a milk carton and some grapes.

Same difference

Mr Gregg held up two Cuisenaire rods and said, "can you find two other Cuisenaire rods with the same difference?"

Then, "can you find other pairs with the same difference?"

We thought there would be an infinite set of these, but here are some of the ones we made:

We talked about what written subtraction sentences these represent.
Samyak and Marie made a really good mathematical claim about these.

And there were plenty more things we noticed in 4B:

Just about all of us thought Marie and Samyak's claim was true, so afterwards we did some drawing and writing to explain why we thought so. Here's some examples:

... and a slideshow:

4B code.org games

4B have been making code.org games.  (4B: you can log on to do this again here.)

Not all of them work perfectly yet, but here they are:

Javier

http://studio.code.org/c/99459263

Sebastian

http://studio.code.org/c/99459768

Eban

http://studio.code.org/c/99457630

Chloe

http://studio.code.org/c/99459483

Vanisha

http://studio.code.org/c/99458786

http://studio.code.org/c/99458922

http://studio.code.org/c/99459209

http://studio.code.org/c/99459432

JamesP

http://studio.code.org/c/99459070

http://studio.code.org/c/99459656

Lucia

http://studio.code.org/c/99459269

Glyn

http://studio.code.org/c/99457923

http://studio.code.org/c/99459107

Leonie

http://studio.code.org/c/99459216

Kayla

http://studio.code.org/c/99458778

Angiolina

http://studio.code.org/c/99459259

Shriya

http://studio.code.org/c/99459275

http://studio.code.org/c/99459511

Imogen

http://studio.code.org/c/99459267

Macy

http://studio.code.org/c/99459637

Andres

http://studio.code.org/c/99459818

Olivia

http://studio.code.org/c/99459400

Jaime

http://studio.code.org/c/99459625

If you make any other games, post the link in the comments below!

LATEST NEWS
Sebastian has made a great game at home. Here it is!

Our code.org games

4G have been creating games on Code.org. (You can log on to your account by clicking here.)

Click below our names to play our games:

(Not all of them work exactly right!)

Alya

http://studio.code.org/c/99184909

Noemie

http://studio.code.org/c/99181633

Rod

http://studio.code.org/c/99185823

Aditi

http://studio.code.org/c/99179693

James

http://studio.code.org/c/99187761

Mr Gregg

http://studio.code.org/c/99181056

Anabel

http://studio.code.org/c/99181578

Justus

http://studio.code.org/c/99181955

2

http://studio.code.org/c/99186918

Sam

http://studio.code.org/c/99182482

Holly

http://studio.code.org/c/99183706

Gracia

http://studio.code.org/c/99181673

Marie

http://studio.code.org/c/99186228

Gabrielle

http://studio.code.org/c/99184333

Alonso

http://studio.code.org/c/99187205

Annie

http://studio.code.org/c/99187680

Sam

http://studio.code.org/c/99189160

And now - see the comments below - another one from Samyak:

http://studio.code.org/c/99393407

If you make a new game, add the link in a comment below!

Here's an extra one from Justus!

Function machines

We've been looking at function machines. You put a number in at one end, something is done to  the number, and, usually, a different number comes out at the other end. It wasn't quite like that the first time we tried it though,,,

 

We had a few more goes using our expensive and sophisticated Year 4 function machine:

Then we tried it out in pairs, making up our own functions:

Tomorrow we'll try some more two-step funtions, and maybe use this online function machine too:

Health and sport week

As part of IST’s health and sports week, today we had a climbing wall installed in the playground, each class had the chance to climb!

 

Javier and James were natural spidermen, they made it all the way to the top.

Macy too was a star climber, she made it to the top!… The rest of 4B all put in a huge effort, most of the class making it at least half way up the extremely high wall! Well done to everyone.