Science Experiments

Posts Tagged ‘science’

Question: When making a sugar crystal does the sugar turn out to be the color of the candy or you need to food color it?

I am doing a science experiment with my sister about making a sugar crystal and need help.

Answer: It depends on what type of color you want it. When sugar is heated, it becomes transparent, sometimes with amber or brown undertones, depending on what type of sugar you use. Heating it more will result in a darker color.

To achieve other colors like blue, red, or green, you really would need food coloring.

Halloween Blood Candy – Yawning Yolanda – KOLR 10 Quirkles Science Experiment

Question: How can I expand my science fair project idea? Real life application needed…?

For the science fair my partner and I made flute headjoints out of various materials. We were planning on blowing through them and using sound frequency wave analysis software to see how many overtones were present in the sounds. Then based on that we would come to a conclusion about the different metals and how they affect the vibrating column of air inside the flute. I’m starting to think this isn’t enough and I’d like to connect the project with a real life application. Does anyone know of a practical usage of vibrating columns of air in tubes (one that is comparable to our experiment)?

Answer: The animal or human ear / ear drum!… On a different note (pardon the pun) You could also look into hypersonic sound (which is more directional) then you can aim two non-audible signals at slightly different kHz say 50kHz signals and another at 60KHz.. if they are phased correctly they should yield a 10KHz hear able sound where the two non audible sounds are in the same location. Does that sound like fun?

Google Project 10^100 – Virtual World – Idea (project 10 to the 100)

Science Educational Toys Tedco Toys Gyroscope