The Best Thermos...

These two thermos were the best insulators. The best working thermos had a lid that went down into the water. The air in a thermos can help cool down the water faster. Without the air inside the thermos to circulate and cool off the water, the hot water can better maintain its temperature.

This thermos only lost 4 degrees Celsius. 

 This thermos lost a total of 3 degrees Celsius.

The Ear & Playing Instruments

2/5/13

Today we began by talking about the ear. We learned what the different parts of the ear did and why they were important.

Another topic we started on was loudness. The unit of measurement is decibels. The most decibels you can withstand without hearing damage is 85 dB. That is the sound of busy city traffic.

After, we each brought in instruments of our own to examine the ranges of each instrument. We played the highest pitch and the lowest pitch on each instrument.

                 

Thermos Design Challenge

Making Ice Cream!

First, the students went down an assembly line pouring all of the ingredients into a bag. Next, the students put the ingredients inside a another bag of ice and rock salts.

Next, the students had to shake the ice cream for about 10 minutes for it to freeze. Luckily, the salt lowers the freezing point of the ice making it much colder, freezing the ice quicker.

 During lunch Mr. Rheinecker and Mrs. Hardin came down to the lab to make ice cream.

 We measured the temperature of the melted salty ice after the ice cream froze and it ended being  negative 12 degrees Celsius (10.5 degrees Fahrenheit).

We had many great toppings for our ice cream!