SNOW MELTS MUCH FASTER THAN ICE CUBES

We have a lot of snow right now. It has been snowing!!!!!!

EXPERIMENT: You ONLY need water in different states.

Ice is the solid form of water amd water molecules are stacked together.

Snow that freezes into a crystallized form. (There is a lot of air around each cristal)

Soda geyser

The eruption is caused by a physical reaction, rather than any chemical reaction. 

The conversion of dissolved carbon dioxide to gaseous carbon dioxide forms rapidly expanding gas bubbles in the soda, which pushes the coke contents out of the bottle.

The human body is electrically conductive!!!!

A piece of fruit or vegetable can  also conduct electricity, as basically anything else that’s organic. We have  created a fun  project: a digital fruit piano.
What sound does a banana make??????

How much sugar is there in a can of soda? (Density)

If you put a can of regular coke or pepsi into a container with water, it will sink. While, if you put a can of diet coke into the same container, it will float.

WHY?

 Coke has more mass because of the 35 grams of sugar it contains, compared to the 125 milligrams of sweetener in a can of diet coke.

The cans of soda have exactly the same volume, or size. But their density is different  due to what is dissolved in the soda. If you look at the nutrition facts on a can of regular soda, you will notice that it contains sugar...a lot of sugar.

Rethink your drink!!!!!

Testing for carbohydrate and fat in food

Even more experiments from Elena's sexto class.  They have been testing different foods for carbohydrate (starch using iodine solution from the pharmacy) and fat (using medical alcohol).  These are the easiest food groups to test for and the students catagorised the different foods by what nutrients they contained.

 
Link to pdf: Nutrients in food teaching notes and worksheet

Measuring energy in food by Elena

More cool experiments from Elena's sexto class.  They have been burning different types of nuts and measuring how much heat energy the fire makes.  They caught the energy in a test tube of water and measured the temperature increase - you can use this to calculate the energy in the food.  Fire, test tubes and burning food and you can sneak some maths in too. 

If you have a nut alergy problem in the class you can use things like pringles crisps, bread and biscuits but they are not as easy to burn as nuts are.

Link to pdf:  Energy in food teaching notes and worksheets

Simulating digestion by Elena

Elena has been doing nutrition and digestion with sexto.  They have been using ladies tights to simulate intestines and have investigated how food passes through the intestine walls.  They did peristalsis with their hands and looked at what foods were absorbed quickly, slowly and not at all.

It looks messy and fun!
Link to pdf:  Teaching notes and worksheet