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Evaporation Investigation

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This week in Science we've been looking at how water can exist in all 3 states of matter and in particular how water is evaporated into water vapour. So we decided to investigate whether temperature affects the rate of evaporation by doing some washing!!

Keeping it very scientific, we measured out 50ml of water and poured it onto each of 3 towels, which were exactly the same size. At the same time, these towels were hung on 3 washing lines situated in places chosen for the different temperatures of their position; the playground, the agora and the classroom.

By weighing the towels, dry, after the water was absorbed and then after they had had time to dry on the washing line, we could calculate the amount of water that had evaporated, and draw a conclusion about the affect of the temperature.

After going outside to find Newts for Mrs Wright, Oliver and Aiden discovered a strange material sticking out of the soil. A bit of muscle power later and  some tugging revealed a strange and quite heavy sack. We decided to leave the newts to themselves and take our exciting discovery into the agora to explore the contents in the warm.

Inside we found an array of what appeared to be Roman artefacts. On closer inspection and after a bit of discussion, we decided that the artefacts included;

wax tablet for writing
Statue of Roman goddess
Amphora with dried dates (a kind of pot)
Gladiator stone carving
toga tunic and red sash
sponge on a stick (roman toilet paper!)
Map on cloth of Roman St Albans
Gladiator/Roman army greaves to protect arms and legs in battle
oil lamp
pottery child's spinning top which we thought might have been a food crusher!

As we'd accidentally become archaeologists, we decided that we needed to formally record our findings. Using an Artefact Catalogue sheet, we drew each item and then wrote whether we thought it was a genuine Roman artefact or not and why we thought this.

We're really excited to see what else we will be able to find out about the Romans Topic!

We received a lovely letter from Duxford!

On Friday 20th October we all had a great day out to Duxford Air Museum. It was a blustery day with the threat of rain hanging in the air, but that didn't ruin our fun at all!

We were met at the entrance by Debbie from the Museum's Education Centre. She had sent a letter to the teachers in the Summer holidays asking if we would be able to produce some work about flying machines as they needed some to display in the museum. We've been working hard all half term, learning about the science behind flight, as well as designing and making our own flying machines. We then wrote an explanation text, with labelled diagram and included a photo of ourselves and our junk model machine to make the finished posters. Debbie was really impressed with our work and we had a little hand over ceremony underneath Concorde. Debbie is now going to put all our work up in the classrooms at Duxford for all the other visiting schools to admire. A very proud moment! smiley

We then went to look at the stealth planes in Hangar 7 and saw the Bluebird that can not be detected by radar. We got to try on some World War 2 uniforms and literally walk underneath some amazing aircraft as they were suspended from the ceiling. One of the bombers even had a bomb shaped tally of all the bombs it has dropped. We counted 198!! The information written with the planes was exactly like our explanations texts and even had labelled diagrams.

After our much needed lunch, we set off to explore the science of flight in Hangar 1 and were able to complete experiments; making hot air balloons rise, flying simulators and trying to safely land a plane, testing out the affect of drag on the undercarriage of a plane and so much more. This was all hands on and helped us to consolidate our science and topic learning from this half term.

Finally we had a look on Concorde and walked up and through the fuselage. We were surprised by how small it was on board, but there were soo many dials, I'm not sure that even with all our fab knowledge, we'd be able to fly that plane!!

All in all, we had a great day out and the trip was a great way to end a fantastic topic.surprise Thank you to Mr Shinn, Mrs Tasker and Mrs Newton for coming along with us for the day.

Designing our own Flying Machines

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Conducting Scientific investigations with our very own kites and parachutes

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As part of our Science lessons we were testing a particular element of either a kite or parachute to see what made it fit for purpose. Some groups decided to test different materials, others the type of tails on a kite and one group even investigated the shape of a kite. We had great fun testing out our kites and parachutes, collecting data in order to make a scientific conclusion. Most of us decided that tin foil really wasn't a good material for either kites or parachutes!!
As part of our topic on Flight, we designed and made our own flying machines, using a combination of our knowledge of how different things fly (learnt in Science) and and own amazing imaginations. We made our ideas come to life with junk modelling techniques and then used our English lessons to write an explanation text, explaining how our machines worked. We added a labelled diagram and then along with our junk model photos we made a poster, all of which have ended up on display at Duxford Museum, for all other visiting schools to admire!

Helicopter Flying!

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Taking Flight in Science

This afternoon (Monday 18th September) the Woodpeckers have been looking at the force of air resistance and flying helicopters in the classroom. After making the rotor blades and investigating the impact of both gravity and air resistance, as well as how the blades rotate, we then had to chose an element to change and investigate. 

We could look at the impact of having blades of different sizes, the weight on the end of the blades and changing the size and length of the blades themselves.

We had great fun testing out our theories and seeing the affects of the changes. We'll now be able to report back our findings to each other and decide where we want to take our science learning next.

On Tuesday afternoon (5.9.17) Year 4 made their way to Gate 4 at the JW Airport to board a round the world flight. After watching an inflight safety video, we took off and could see the clouds rushing by the wings of our plane. We landed in an unknown destination and had to find Mrs Orange to get some picture clues. Using ipads and atlases we then had to find out what city and country we had landed in, as well as the language we would have to speak, the currency to use and research some facts of our own. We each had our very own passports where we could record all our information. In the course of the afternoon we visited; New York, Rio, Egypt, Sydney and Beijing! We even found out the distance travelled and duration of each flight. We certainly had a case of jet lag by the time we landed, but what a fun way to kick off our Flight topic!