Kitchen Chemistry: Cake Experiment

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Cooking has always been a favorite hobby of mine. I studied foods/nutrition in college and also taught high school foods classes for a while. So a little bit of kitchen chemistry is pretty exciting to me. The kids and I did a cake experiment this week that was interesting and yummy! I found this fun idea over not the Education.com website. Did you know that baking is actually a chemical reaction?  When you add heat to something and it changes, it is called an endothermic reaction. So, baking is chemistry!!

 

Kitchen Chemistry

 

We did an experiment with mini cakes to see what happens when we leave out certain ingredients. We made four different ones. One cake was made correctly with all of the necessary ingredients. In one of the cakes, we left out the egg. In one cake we left out the baking powder, and in one cake we left out the oil.

 

Recipe for the Kitchen Chemistry Cake Experiement

You’ll need to measure and mix this set of ingredients four times to complete all four experiments.

  • 6 tablespoons flour
  • 3 tablespoons sugar
  • 1 pinch of salt
  • 2 or 3 pinches of baking powder
  • 2 tablespoons milk
  • 2 tablespoons cooking oil
  • ¼ teaspoon vanilla
  • ⅓ of an egg (Break egg into a cup; beat until mixed, then use approximately one third of it. Save the rest for 2 of the other cakes.

Mix the dry ingredients, then add the wet ingredients in the order listed. Mix well and pour into prepared dish. Bake at 350 for 15-20 minutes.

I prepared four ramekin dishes by labeling them with a piece of duct tape and a sharpie marker with numbers 1-4. Mix the batter for each cake individually so you can leave out the proper ingredient each time for the experiment.  Label the first cake #1 and make it with all of the ingredients.

Then, go on to bake three more cakes, but with the following differences:

For cake # 2, leave the oil out.

For cake #3, leave the egg out.

For cake #4, leave the baking powder out.

After the cakes are cooled, remove them from the pans and cut them in half. Observe the differences in size, texture, appearance, etc. They are all edible, so you an taste each one and see which tastes the best. Discuss why each cake is different and what the purpose is of each ingredient in the cake.

kitchen chemistry cake experiment

The purpose of eggs in a cake:  Eggs add structure, richness, leavening, color and flavor to baked products. Eggs become firm when heated, so it allows baked goods to add in structure. The fat in the eggs also adds a tenderness and richness to foods.

The purpose of oil in a cake: Oil is a fat. Fat in baked goods makes it more moist and tender after baked.

The purpose of baking powder in a cake:  Baking powder is a leavened. This makes the cake rise. The more it rises, the more light and tender it will be when finished. The baking powder releases a carbon dioxide gas causing bubbling. The bubbling makes pockets of air causing the baked goods to expand.

 

 

cake chemistry experiment

 

It’s fun to do science when you get to eat it.  Next time I think we will try a cookie experiment!

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Bible Storybook Review & Giveaway

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As a Tommy Mommy blogger, I feel so lucky to have the chance to receive so many wonderful books to review as well as giveaway to you guys. This month the book we received was called God’s Word For Me: Bible Storybook.

 

Bible storybook

God’s Word For Me features favorite stories from the International Children’s Bible compiled by Tama Fortner and illustrated by Marijke ten Cate.  It was previously published as the Beginning Reader’s Bible. The International Children’s Bible translation was developed over many years by twenty-one scholars. It was made to be easy for children to read. The great thing about kids reading this is that they are learning the Bible stories as they practice reading.

 

This Bible features memory verses, activities and prayers along with the stories. This helps kids to reinforce the things they are learning as they read the stories. It also helps them learn to live the words of the Bible.

bible storybook for kids

At the end of the Bible, there is a reading chart, songs, memory verse chart, and other facts to help them learn and memorize.  This Bible storybook is a great learning resource for kids as well as a fun book that kids enjoy reading. I have enjoyed reading it to my younger kids, too.

 

gods word for me- bible storybook

Some things I love about this book are the colorful pages and creative illustrations. I love how they encourage kids throughout the book to do the things they learn about. I also love that it has a ribbon bookmark in it. That is a simple thing- but I like it because it encourages my kids to save their place and keep reading it later, and they have been.

 

And, since I am all about giving away stuff to you guys… I am happy that Tommy Nelson is giving a copy of God’s Word for Me- Bible Storybook to one of my wonderful readers! Enter below. :)  This is just the month of giveaways here, isn’t it?

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