Science

__Tuesday 7 June__

Where does bread mould the fastest? What brand of bread moulds the fastest?



**Science Fair Marking Term 2 2011** ☒ Not achieved ☑ Achieved ☑☑ Advanced

**Scientific Process and Background:** ☑☑ Clear aim/hypothesis carried through ☑☑ Method, accurate experimentation ☑☑ Accurate experimentation, controls, variables, repetitions ☑☑ Results clear, accurate, include appropriate data ☑ Conclusions are in line with aim/hypothesis ☒ Results are interpreted and discussed (conclusion)

**Technical Skill:** ☑ Design of the experiment ☑ Use of apparatus and materials

**Originality:** ☑ Imaginative/creative ideas ☑ New/Unusual application in science

**Presentation of Display:** ☑ Colour/form/clarity/graphics ☑ Innovative appeal

**Log Book:** ☒ Authentic ongoing record with raw data included ☒ Has supporting documentation, bibliography, acknowledgements

**Teacher Comment: Well done Nicola you have a clear method and hypothesis with an excellent presentation of your results. I would have liked to see an explanation in your conclusion that discussed why the bread didn't go mouldy in the fridge and why it did in the hot water cupboard etc. This would have lead to the conditions that mould grows best in and how it grows etc. Would have helped with your own understanding of your results.**

**Student Comment:**

__**Introduction**__**-**

I am trying to find out where bread moulds the fastest and what brand of bread moulds the fastest because our bread always moulds in the pantry and we buy tip top which is a more expensive brand and I want to know whether or not the more expensive brands are better.

__**Aim-**__

My aim is to find out where bread moulds the fastest in the fridge, pantry, bench or the hot water cupboard and what brand of bread out of Ploughmans, Tip Top, Pams, Home Brand, and Signature Range mould the quickest.

__**Hypothesis-**__

I think the Ploughmans and Tip Top bread won’t mould fast because they are more expensive. I think the home brand will mould the fastest because it is the cheapest. I think the bread in the hot water cupboard will mould the fastest because it is warmer and I think that it will mould the slowest in the fridge.

__**Equipment-**__

5 different brands of bread 20 snaplock bags different places to keep them e.g hot water cupboard, fridge, bench and pantry. somewhere to write your results each day.

__**Method-**__


 * 1) Put 1 slice of each brand of bread in a snaplock bag
 * 2) Label the snaplock bags with what brand of bread the date and where you are putting it. Repeat this for each bag.
 * 3) Put 5 slices of each brand in the fridge, pantry, hot water cupboard, and on the bench.
 * 4) Look at the bread each day for 2 weeks to see if there are any changes.
 * 5) Note down the results each day.

__Results for the hot water cupboard:__

9/5/11- Pam, Ploughmans, and Signature Range are all complete because they are mouldy. 11/5/11- All the bread has gone mouldy now. Pams and signature range were the first to mould then ploughmans which is the most expensive, home brand and tip top were the last to mould.

__Results for the pantry:__

9/5/11- Pams, Signature Range, and Home Brand are complete because they are mouldy. 11/5/11- All the breads are now complete the first to mould was Home Brand,

__Results for the fridge:__

9/5/11- None of the bread has moulded yet. 11/5/11- All are complete now but none moulded.

__Results for the bench:__

10/5/11- Pams, Signature Range, Home Brand and Tip Top are complete because they are all mouldy. 11/5/11- Ploughmans is now complete because it is mouldy.

Results -

What is the better bread?

__Hot water cupboard__

1st /best- tip top and home brand 2nd-ploughmans 3rd-pams and signature range

__Fridge__

None of them went mouldy

__Pantry__

1st - ploughmans 2nd- tip top 3rd- pams, signature range and home brand

__Bench__

1st- ploughmans 2nd- pams, signature range, home brand and tip top

over all

1st- ploughmans 2nd- tip top 3rd- home brand pams and signature range

Where is the best place to keep the bread?

1st- Fridge 2nd- Bench 3rd- Pantry 4th- Hot water cupboard Conclusion-

I have learnt that the best place to keep bread is in the refrigerator but keeping it in the pantry is also a good place to keep it but don’t keep it somewhere that is hot. My hypothesis was right, the bread moulded the fastest in the hot water cupboard and the slowest in the fridge. So the more expensive brands are the better ones. I don’t think I would need to do this again because I got a good result.

__Thursday 12 May__

__Hypothesis__- We think that substance A is cornflour, substance B is salt, substance C is cream of tarter, substance D is icing sugar and substance E is is baking soda.

__Equipment-__ Iodine Litmus paper Baking soda Cornflour Salt Cream of tarter Icing sugar Beaker Spoon Vinegar

__Method-__ We put each substance in to the beaker one at a time and added water and vinegar and iodine to see if anything happened. We also used litmus paper to see if it changed colour.

__Results__- A was cornflour, B was salt, C was baking soda, D was icing sugar and E was cream of tarter.

<span style="color: #0000ff; font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Reflection- Today we got A, B and D right and C and E wrong. I think we did really well guessing which one was which.

<span style="color: #0144a4; font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Chromatography __Tuesday 10th May__

<span style="color: #ba160d; font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">L.I- I and learning the process of the chromatography and use this to assist with solving the crime

<span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Aim- To use chromatography to distinguish which pen was used in the ransom note.

<span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Hypothesis- When I first saw the pens I thought it was the bic pen because the colour look the same as the ransom note.

<span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Equipment- Beaker, felt pens, ransom note, filter paper, water, hand lens, marking tape and a straw

<span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Results- After we tested all the pens we could see that the bic pen was the same as the one used in the note because they were the same colour.

<span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;">Conclusion- The bic pen wrote the note because they are the same colour and the normal pen and the sharpie were to thin to have been the same as the note.

__ Thursday 5 May ﻿ __

<span style="color: #999a2e; font: normal normal normal 14px/normal Arial; letter-spacing: 0px; line-height: 21px; margin: 0px;">**Eye tests:**

<span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;"> 1.Which eye do you use to wink? LEFT <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;"> 2.Which eye do you use to look through the empty tube? RIGHT <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;"> 3.Extend your arms in front of your body. Make a triangle shape using your fore fingers and thumbs. Bring your hands together, making the triangle smaller (about the size of a coin is good). Find a small object in the room and focus on it through the hole in your hands (using both eyes). Try closing just your left eye and then just your right, if your view of the object changed when you closed your left eye mark down ‘left’, if it changed when you closed your right eye mark down ‘right’ LEFT

<span style="color: #999a2e; font: normal normal normal 14px/normal Arial; letter-spacing: 0px; line-height: 21px; margin: 0px;">**Hand/Arm tests:**
 * 1) <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px;">Which hand do you use to write? RIGHT
 * 2) <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px;">Pick up the cup of water, which hand did you use? RIGHT
 * 3) <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px;">Throw the ball, which arm did you use? RIGHT

<span style="color: #999a2e; font: normal normal normal 14px/normal Arial; letter-spacing: 0px; line-height: 21px; margin: 0px;">**Foot/Leg tests:**
 * 1) <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px;">Run forward and jump off one leg, which did you jump off? BOTH
 * 2) <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px;">Drop the ball on the ground and kick it, which foot did you use? RIGHT

<span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">Explanation: <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">We had to test our selves with an eye test, hand/arm test, and a foot/leg test and answer them to see if we used our right side or our left side. I got 5/8 right and 1/8 left and 1/8 both so I am mostly right sided. 90% of people are right handed. Around 80% of people are right footed and 70% favor their right eye.

I don’t think it matters weather your right or left handed in sport because you use what ever side you feel more comfortable using.

Reflection: Today for this experiment I had fun

__Tuesday 3 May__

Science Fair Due Friday 3 June Week 5 = = =<span style="font-size: 1.4em; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 5px;"> <span style="font-size: 1.4em; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 5px;">__ Science Fair __ =

Please have a close read of the following site that Mr Marsh has put together. <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; font-size: 17px; line-height: 25px; padding-right: 10px;">@http://ourspace.tauranga-int.school.nz/course/view.php?id=64

[|ScienceFairBooklet.pdf]
 * [[image:http://c1.wikicdn.com/i/mime/32/application/pdf.png height="32" caption="external image pdf.png" link="http://rimuroom42.wikispaces.com/file/view/ScienceFairBooklet.pdf"]] ||
 * external image pdf.png ||

Useful Science sites for ideas: <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; font-size: 18px; padding-right: 10px;">@http://www.sciencebuddies.org/ <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; font-size: 17px; line-height: 27px; padding-right: 10px;">@http://www.all-science-fair-projects.com/

Cool Science Sites <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; font-size: 18px; padding-right: 10px;">@http://www.sciencelearn.org.nz/

====<span style="font-size: 1.066em; font-weight: normal; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 5px;"><span style="font-size: 1.066em; font-weight: normal; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 5px;"><span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; font-size: 18px; padding-right: 10px;">Please Note:  ==== ====<span style="font-size: 1.066em; font-weight: normal; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 5px;"><span style="font-size: 1.066em; font-weight: normal; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 5px;"><span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; font-size: 18px; padding-right: 10px;">This table is different from the one outlined in the above Science Fair booklet. There will be__**no extensions**__ given, Class time will be given for writing up aim, hypothesis, instructions, explanations, diagrams, tables etc and putting displays together. Parents please support your child with carrying out their experiments as this will be the main element of their homework during Science Fair. ====


 * ||  ||   ||   || <span style="display: block; font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-align: center;">**Order of Events** ||   ||   ||   || <span style="display: block; font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-align: center;">**Timeline** ||


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">1 ||  ||   ||   || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">Choose a topic including is it a //Science or Technology// display ||   ||   ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 1 ||


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">2 ||  ||   ||   || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">Completed Aim and Hypothesis (science) or Question (technology) ||   ||   ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 2 ||

<span style="font: normal normal normal 12px/normal 'Times New Roman'; line-height: 19px; margin: 0px;"><span style="font: normal normal normal 12px/normal Webdings; letter-spacing: 0px;"> //What do you need?// <span style="font: normal normal normal 12px/normal 'Times New Roman'; line-height: 19px; margin: 0px;"> <span style="font: normal normal normal 12px/normal Webdings; letter-spacing: 0px;"> //Who do you use?How many?// <span style="font: normal normal normal 12px/normal 'Times New Roman'; line-height: 19px; margin: 0px;"> <span style="font: normal normal normal 12px/normal Webdings; letter-spacing: 0px;"> //What help do you require?// <span style="font: normal normal normal 12px/normal 'Times New Roman'; line-height: 19px; margin: 0px;"> <span style="font: normal normal normal 12px/normal Webdings; letter-spacing: 0px;"> //How will you measure and collect data?// <span style="font: normal normal normal 12px/normal 'Times New Roman'; line-height: 19px; margin: 0px;"> <span style="font: normal normal normal 12px/normal Webdings; letter-spacing: 0px;"> //How many trials/experiments/prototypes will// //you complete?// <span style="font: normal normal normal 12px/normal 'Times New Roman'; line-height: 19px; margin: 0px;"> <span style="font: normal normal normal 12px/normal Webdings; letter-spacing: 0px;"> //How will you present data? Numbers are good!// <span style="font: normal normal normal 12px/normal 'Times New Roman'; line-height: 19px; margin: 0px;"> <span style="font: normal normal normal 12px/normal Webdings; letter-spacing: 0px;"> //Do you need to complete a Animal Ethics form?// ||   ||   ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 2 ||
 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">3 ||  ||   ||   || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">Planned how you are going to complete experiments (science) or investigation of needs assessment and prototype design (technology)


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">4 ||  ||   ||   || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">Start experiments (science) or needs assessment (technology) ||   ||   ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 3 ||


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">5 ||  ||   ||   || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">Needs assessment (technology) completed ||   ||   ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 3/4 ||


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">6 ||  ||   ||   || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">Experiments (science) and prototype testing (technology) completed ||   ||   ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 3/4 ||


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">7 ||  ||   ||   || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">First draft completed ||   ||   ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 4/5 ||


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">8 ||  ||   ||   || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">All written work, diagrams, tables, graphs, photos, and other graphics completed and checked by the class teacher**BEFORE** it is attached to the display ||   ||   ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Week 5 ||


 * <span style="font: normal normal normal 13px/normal Arial; letter-spacing: 0px; line-height: 19px; margin: 0px;">9 ||  ||   ||   || <span style="font: normal normal normal 14px/normal 'Times New Roman'; letter-spacing: 0px; line-height: 19px; margin: 0px;">**Completed display ready to be marked by teacher** ||   ||   ||   || <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Monday Week 6 ||

__Monday 2 May__

<span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">Explanation: <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">First we cut out 3 pieces of white card and normal cardboard in to circles by tracing the bottom of the drink bottle, then we divided them into differed fractions.After that we coloured the fractions in with different coloured pencils,next we got them and we got the cardboard circles and we glued the white card we coloured in on to the cardboard.Then we got our compass and we Poked a hole the size of our pencil in the center of the circle.We poked the pencil in the hole and we span it with our hands and we looked at what happened and this is what happened, you can still see all the colours the same they just move well you spin it.

<span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; margin: 0px;">I chose yellow because I found it a little boring. <span style="font: normal normal normal 12px/normal Helvetica; letter-spacing: 0px; line-height: 0px; margin: 0px; overflow-x: hidden; overflow-y: hidden;">