Science



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

☑☑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:**

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

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

Great Science Fair Anna (but you forgot to include what they tasted like :+) Your Science Fair was well structured, easy to follow and was a good example of how to conduct a fair test. You have an attractive presentation and written up a good discussion and conclusion. It was difficult for you to explain why Edmonds was the best as you were not sure which of the ingredients made the muffins rise, however could conclude that the edmonds ingredients overall was best.
 * Teacher Comment:**


 * Student Comment:**

**I think I did OK on my science fair. I could have done a lot better by spending more time on my log book and display it a bit more colorful and more detail but other then those minor problems I think my science fair will get a good mark over all.**

Science fair - Which brand of baking powder is the best

Introduction:

Wikipedia says that baking powder is a dry chemical raising agent used to increase the volume and lighten the texture of baked goods such as muffins and cakes. In other words, it helps the baking be light and fluffy to eat. Baking powder works by making carbon dioxide in side the the baking mixture. This makes little bubbles which makes the mixture rise. Baking powder is usually made out of a baking soda and an acid. When these are mixed together with a liquid it releases carbon dioxide. There are many brands of baking powder in the supermarket; some are cheep some are expensive. My family loves baking and we use lots of baking powder in our baking. I want to know which one is the best.

Aim:

I want to find out two things •Which baking powder rises the most. •Whether the cost relates to how good the baking powder is.

Hypothesis:

I think the more you pay, the better the product should be, the more expensive the baking powder, the more the mixture should rise. If I put different baking powders in each mixture, then the more expensive ones should rise the most.

Equipment:

•Oven •Two muffin trays •A thermometer •Measuring cups and spoons-knife, wooden spoon and sieve •Baking ingredients - Flower •Pen and paper - Sugar <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px; margin: 0px;">•Cutlery - Salt <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px; margin: 0px;">•Mixing bowl - Milk <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px; margin: 0px;">•Camera - Baking powder <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px; margin: 0px;">•recipe - Eggs <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px; margin: 0px;">•ruler - butter <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px; margin: 0px;"> - vanilla extract

<span style="font: normal normal normal 20px/normal 'Bank Gothic'; letter-spacing: 0px; margin: 0px;">Method:


 * 1) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;">Measure the temperature of the kitchen
 * 2) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;">Turn on the oven at 180°on bake
 * 3) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;">Get all of the baking ingredients and put them on the bench
 * 4) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;">Find a bowl and a wooden spoon
 * 5) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;">Put the ingredients in to the bowl one by one following the recipe
 * 6) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;">Mix with the wooden spoon until creamy
 * 7) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;">Put exactly two table spoons of mixture into each muffin dip
 * 8) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;">Put the tray in to the oven for 10 minutes (as soon as the thermostat light switches off)
 * 9) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;">after ten minutes, take the muffins out of the oven,leave to cool for 20 min
 * 10) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;"> cut the middle 4 muffins in half and measure the height of the cut surface.
 * 11) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;">Write the measurements down an a piece of paper
 * 12) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;">once the muffin trays have cooled to room temp, repeat this process with the next brand of baking powder
 * 13) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;">do one batch of muffins with each baking powder one ofter the other so that the conditions are the same.
 * 14) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;">repeat the whole process 2 more times at the same time of the day but on different days (the room temp must be the same)
 * 15) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;">Take photos while you are doing the experiment
 * 16) <span style="font: normal normal normal 20px/normal 'Abadi MT Condensed Light'; letter-spacing: 0px;">table the results and find the average height of each batch of four muffins and then the average height of the batches with the same brand of baking powder

<span style="font: normal normal normal 16px/normal 'Bank Gothic'; letter-spacing: 0px; margin: 0px;">Recoding and Results: <span style="font: normal normal normal 16px/normal 'Bank Gothic'; letter-spacing: 0px; line-height: 0px; margin: 0px; overflow-x: hidden; overflow-y: hidden;">

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