Karen Puracan is a science teacher at Hale Academy in Ocala, Florida. The school is a small private school with grades PreK-12th. Mrs. Puracan teaches 8th grade integrated science, 6th and 7th grade life science, 8th through 10th grade physical science and high school biology and ecology. To say she teaches a little of everything is an understatement.
Class sizes are small. Her largest class has only 11 and the smallest classes have only three students. This gives Mrs. Puracan the opportunity to really get to know each student and engage them one-on-one – something most teachers today are unable to do. This also allows time to play or “investigate” as Mrs. Puracan calls it with science.
“Since we are a private school, we have the freedom to take our time exploring things in more depth, without worrying about the test,” Mrs. Puracan explains.
Last year, Mrs. Puracan was a physical science “greenhorn” and stuck to the book. She quickly found the book was boring for both herself and her students.
Last night we gave away several copies of my new book, Naked Eggs and Flying Potatoeson Facebook and Twitter. We had a lot of fun chatting with some amazing teachers, parents and science enthusiasts and asking Steve Spangler Science trivia questions. In all, we gave away over 20 copies of the book. Now here’s your chance to own the book before it becomes available on Amazon and Barnes and Noble. Greenleaf Book Group gave us 200 advance copies to sell before the September 13th release date. I’ll even sign the books during this special pre-sale time. If you want a book before everyone else gets it, grab one today.
With a title like Naked Eggs and Flying Potatoes, you know that this probably isn’t going to be your ordinary book of experiments. At the early stages of writing this book, we had to put our heads together and try to think of a way to make this book different from the thousands of science experiment books out there. It’s true… just saying the words science experiment book will spawn a contagious outbreak of uncontrollable yawns followed by hours of sleep. So, how was I going to inspire my team to help me create a book that was different? Take a look…
We started by building a list of the most popular science experiments that I’ve had the opportunity to present over the years – in the classroom, on television and on our website. The next step was to use amazing photography to capture the wow-factor of each activity. It’s no different that thumbing through the pages of a
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Oil and water don’t mix. Everyone knows that. What is the scientific reason behind why don’t they mix?
Answer: Oil and water don’t mix because of how their molecules are constructed. Water is what is known as a polar molecule. A water molecule is shaped like a V, with an oxygen atom at the bottom point of the V and a hydrogen atom on each of the two top ends. However, there is unequal sharing of electrons between the hydrogen and oxygen atoms. This means that the bottom of the molecule has a negative electrical charge, while the top car- ries a positive charge.
Vegetable oil, on the other hand, is a nonpolar molecule made of long chains of hydrocarbons—strings of carbon atoms bonded to hydrogen atoms. Unlike the water molecule, there is equal sharing of electrons between the carbon and hydrogen atoms. This means that the electrical charges