Monday, June 25, 2012

Pressurized Gas

We explore what happens when you shake a can of soda in this episode of Science With Hannah. 

True or False?  Tapping on the top of the can will keep your soda from exploding after it has been shaken.  The answer:  False, tapping on the sides and the bottom work, but tapping on the top does not because the bubbles on the top are not responsible for the explosion...but the ones stuck to the sides and bottom are.. 

video

Tuesday, June 19, 2012

Chemical Change

The activity is like magic!  But, it's really just a chemical reaction that changes the color of a nail. 


Gas- air is a gas


This activity is so simple.   But the results are surprising to most people!  I bet you have everything you need to do this in your kitchen.  Have fun!




Polar and non-polar molecules- SWIRLY MILK!

The activity in this video is so much fun and even a little artistic!  Molecules can be repelled and attracted to one another based on many characteristics.  In this activity, you'll see how milk swirls around by adding a little bit of soap to it.




Another thing to think about when watching, is how soap removes the oil and other gunk from your body when you take a bath!  One end of the soap attracts the oil while the other attracts water.  The soap and water get washed away leaving you with clean hair and skin!

Density 2- Lava Lamp




Would you like to make a homemade lava lamp AND learn about density at the SAME TIME?
Well, check out this video! 





Sunday, June 17, 2012

Density- Dancing Raisins


It's time to BOOGEY!  Well, for the raisins at least.  This video explores the concept of density using raisins in soda. 


Air Pressure


This is one of my favorite videos!  We explore air pressure by shrinking the volume of a plastic bottle. 



Bernoulli's Principle

Every wonder how airplanes fly?  It's all about air pressure!  The air molecules below the wings of the plane are pushing UP on the wings with more force than the air molecules and above the wings are pushing down.  The difference is enough to overcome gravity's pull towards the Earth allowing the airplane to lift into the air.  The faster the airplane moves forward, the higher it flies!  Bernoulli's principle explains how a really heavy airplane gets lifted into the air.

Check out this video to learn about Bernoulli's Principle. 





Saturday, June 16, 2012

Gravity

Hello, my name is Hannah!  I am a 5 year old who loves science!  In the following blogs, I will show that science is really fun and not nearly as difficult to do as many people think.


Many of these videos are from when I was younger than I am now.  I can't wait to get working on more videos!  This video is all about gravity.  Someday, I am going to invent an anti-gravity machine that lets me fly.