Science

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

☑☑ 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)
 * Scientific Process and Background:**

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

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

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

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


 * Teacher Comment: Great name for your science fair Sam. You have clearly thought about this before you started and have chosen a meaningful topic. You have included an explanation for why kiwifruit ripens with other fruit. This is fantastic to see. Your use of graphs is effective and I like the way you have included photos on your display. Well done Sam.**


 * Student Comment:**




 * Rapid Ripening**

I am doing this science project because I want to find out the best way to ripen kiwifruit. We live on a kiwi-fruit orchard and like to have edible kiwifruit available as much as possible.
 * Introduction:**

My aim is to find the fastest method to ripen kiwifruit to an edible standard.
 * Aim:**

1. 1x Brix tester. 40x Kiwifruit - Hayward (green) variety
 * Materials:**


 * 1) 2x Banana 2x nashi
 * 2) 2x apples.
 * 3) 8x Sealable plastic bags.
 * 4) 1x Knife
 * 5) 1 chopping board
 * 6) 1 hot water cupboard

I think that the kiwifruit with the banana in the bag will be the most flavorsome and will ripen the fastest. I think this because, as bananas ripen they release ethylene gas which help kiwifruit ripen.
 * Hypothesis:**

This hypothesis is supported by an old sea faring legend which tells the story of when sailing ships use to stop at islands and re-stock with food including lots of fruit. The bananas would always go off first and triggered all the other fruit to go off as well.


 * Method:**
 * 1) Pick 40 hard, unripe kiwifruit.
 * 2) Fill eight clip-top bags with the following fruit combinations


 * Results:**


 * **Bag #** || **Fruit in bag** || **Storage** ||
 * Bag 1 || 5 kiwifruit || room temperature ||
 * Bag 2 || 5 kiwifruit + 1 apple || room temperature ||
 * Bag 3 || 5 kiwifruit + 1 banana || room temperature ||
 * Bag 4 || 5 kiwifruit + 1 nashi || room temperature ||
 * Bag 5 || 5 kiwifruit || hot water cupboard ||
 * Bag 6 || 5 kiwifruit + 1 apple || hot water cupboard ||
 * Bag 7 || 5 kiwifruit + 1 banana || hot water cupboard ||
 * Bag 8 || 5 kiwifruit + 1 nashi || hot water cupboard ||


 * 1) Place bags 1- 4 in a room where they will not be touched. Place bags 5-8 in one shelf in the hot-water cupboard.
 * 2) Conduct a brix test on a randomly selected fruit on the first day then every 2 days starting on the 4th day. See results on the table below.
 * 3) When the kiwifruit feel soft enough to eat get your family or friends to taste test the fruit and then record the number of soft fruit in each bag. See graph below.

Please Note: We will be using a brix tester. Brix testers measure the sugar levels and the ripeness of kiwifruit. We will not be tasting the kiwifruit until they are soft enough to eat and we will end on the

10th day.

**(****measured** **using** **brix****)** || **Day 4** **(****measured** **using** **brix****)** || **Day 6** **(****measured** **using** **brix****)** || **Day 8** **(****measured** **using** **brix****)** || **Day 10** **(****measured** **using** **brix****)** || 5 kiwifruit at room temperature with nothing. || 8.3 too hard to eat || 8.5 too hard to eat || 8.7 too hard to eat || 9.0 0/5 All to hard to eat. || 10.5 0/4 All to hard to eat. || 5 kiwifruit and one apple at room temperature || 8.3 too hard to eat || 10.2 did not taste. || 14.3 too hard to eat || 16.1 5/5 ready to eat good tasting. || 17.4 4/4 ready to eat good tasting. || 5 kiwifruit and one banana at room temperature || 8.7 too hard to eat || 9.5 too hard to eat || 10.2 too hard to eat || 11.5 1/5 ready to eat good tasting. || 14.0 3/4 ready to eat good tasting. || 5 kiwifruit and one nashi at room temperature || 7.2 too hard to eat || 7.7 too hard to eat || 8.5 too hard to eat || 9.2 No soft ones. || 10.1 0/4 no soft ones || 5 kiwifruit in the hot water cupboard with nothing in it. || 8.0 too hard to eat || 9.5 too hard to eat || 11.7 too hard to eat || 13.4 4/5 ready to eat good tasting. || 14.2 3/4 ready to eat good tasting || 5 kiwifruit and one apple in hot water cupboard. || 7.3 too hard to eat || 9.7 did not taste. || 13.5 too hard to eat || 15.0 5/5 ready to eat prefect tasting. || 16.9 4/4 ready to eat prefect tasting. || 5 kiwifruit and one banana in the hot water cupboard. || 7.7 too hard to eat || 9.4 too hard to eat || 12.7 too hard to eat || 15.1 4/5 ready to eat prefect tasting. || 16.5 3/4 ready to eat good tasting || 5 kiwifruit and one nashi in the hot water cupboard. || 8.5 too hard to eat || 9.6 too hard to eat || 11.4 too hard to eat || 13.5 4/5 ready to eat prefect tasting. || 14.1 3/4 ready to eat good tasting. ||
 * || **Day 1**
 * Bag 1
 * Bag 2
 * Bag 3
 * Bag 4
 * Bag 5
 * Bag 6
 * Bag 7
 * Bag 8


 * Graphs:**


 * Results Day 8**

The bag with the apple in it produced 5/5 ripe kiwifruit. The bags with the nashi, the apple and nothing in it all produced the same results : 4/5 ripe kiwifruit.
 * Hot water cupboard:**

The bag with the apple in it produced 5/5 ripe kiwifruit. The bag with the banana produced 3/5 ripe kiwifruit. The bag with the nashi and the bag with nothing in it both produced 0/5 ripe kiwifruit.
 * Room temperature:**

The bag with the apple in it produced 4/4 ripe kiwifruit. The bags with the banana, nashi and the bag with nothing in it all produced the same results of ripe fruit : 3/4 ripe kiwifruit.
 * Results Day 10**
 * Hot water cupboard:**

The bag with the apple in it produced 4/4 ripe kiwifruit. The bag with the banana produced 3/4 ripe kiwifruit. The bag with the nashi and the bag with nothing in it both produced 0/4 ripe kiwifruit
 * Room temperature:**

My hypothesis was wrong because the bag with the banana in the hot water cupboard and the bag with the banana at room temperature didn’t have the most ripe kiwifruit, they weren’t the most flavorsome and they didn’t have the highest result in the brix test. The bag containing the apple produced the most ripe kiwifruit in the hot water cupboard and at room temperature however the others weren't far behind.
 * Conclusion:**

The bag with the nashi and the bag with nothing in it was the worst at ripening kiwi fruit because at room temperature no fruit ripened and when in the hot water cupboard only three ripened. But again the bag with the banana in it was also following close because it had 3 ripe kiwifruit when the apple had 5. I have learnt that as the fruit in the bags ripened (apple, nashi,banana) they released ethylene gas at different rates which in turn helped to ripen the kiwifruit.

My project has shown that the bag with the apples in a bag were the best at ripening kiwifruit, these bags produced the most flavorsome and had the most ripe kiwifruit. The bag with the apple in them was the best at ripening kiwifruit because it has the most ethylene gas and the clip top bag helps because it traps the ethylene gas in the bag that makes the kiwifruit ripen faster and taste better. The kiwifruit also ripens with sugar and the apple releases a sent of sugar which help the kiwifruit ripen. I do not think that I would have to do it again because I have got a clear result from my test.



 Method: we added the powders to water vinegar iodine litmus paper then found out the results.

 Hypothesis: Cornflower= A Salt= B Cream of tartar= E Backing soda= D Icing sugar= C

 Reflection: we got half of our hypothesis right these are the ones we guessed right cornflower= A salt= B cream of tartar= E icing sugar= C 

 **Test Your Dominant Side** <span style="font-size: 130%; font: normal normal normal 24px/normal Helvetica; letter-spacing: 0px; line-height: 19px; margin: 0px;">We first tested Which e﻿ye do you use to wink with, witch hand you throw a ball with, Witch leg you jump off, Witch eye you look throw a tube with, witch hand you right with, witch foot you kick a ball with and witch hand you pick a cup up with and with all of these I used my right hand.

<span style="display: block; font: normal normal normal 24px/normal Helvetica; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-align: center;"> Spinning top experiment.

=<span style="font-size: 130%; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 5px;">**<span style="font-family: Helvetica; font-weight: normal; line-height: normal; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 5px;">We cut out a perfect circle on some card with the compass we then layered it with some paper to make it even thicker. Then we ruled each 3rd and colored them in with green, blue, and orange we then made a hole in the middle big enough for our pencils to fit through and not fall off. Last of all we span it like a spinning top and found the colour that it blended into, and the colour was grey. ** = = =

= __Monday 2 May 2011__ =

<span style="font-size: 130%; font: normal normal normal 18px/normal Helvetica; letter-spacing: 0px; margin: 0px; padding: 0px;">Gravity free water: <span style="font-size: 130%; font: normal normal normal 13px/normal Helvetica; letter-spacing: 0px; margin: 0px; padding: 0px;">We filled the white 10 by 8cm coffee cup up to the top with water then sealed the mouth of the cup with a small folded piece of card, we then flipped the cup over and then let go of the folded card. The gravity free water held the piece of card for an estimated time of 1 minute and 13 seconds. We tried this experiment a few times before we could get the time of 1 minute and 13 seconds.

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 ||