Knowledge Nugget–September 27

On average, the human tongue has 2,000–8,000 taste buds and they only live for 10 days. On Mr. Dan’s blog you can do a taste testing experiment with two simple ingredients, an apple and potato.

Taste Testing Your Tastebuds

We all know that some foods taste better than others but what gives us the ability to experience all these unique flavors? This simple experiment shows that there’s a lot more to taste than you might think.

What you need
small piece of peeled potato
small piece of peeled apple ( same shape as the potato so you can’t tell the difference)


  1. 1.       Cut your pieces of potato and apple.
  2. 2.       Close your eyes and mix up the piece of potato and the piece of apple so you don’t know which is which.
  3. 3.       Hold your nose and eat each piece, can you tell a difference?

What’s happening?
Holding your nose while tasting the potato and apple makes it hard to tell the difference between the two. Your nose and mouth are connected through the same airway which means you taste and smell food at the same time. Your taste buds can recognize salty, sweet, bitter, and sour, but when you combine this with you sense of smell you can recognize many other individual ‘taste’. Take away your smell and you limit your brains ability to tell the difference between certain foods.

We would love to hear what you discovered from this experiment by leaving a comment.

Information provided by Wikipedia

Knowledge Nugget–September 26

75% of all raisins eaten by people in the United States are eaten at breakfast. You can make raisins dance as a family. Feel free to dance along with them.

Dancing Raisins

Have you ever wondered how a grape is dried into a raisin. In late August, grapes are handpicked, laid on rows of poly paper trays in the vineyard, and allowed to dry naturally in the sun. After two to three weeks, a fresh grape becomes a sun-dried raisin. And four pounds of fresh Grapes yield one pound of raisins. 

What you need
tall clear glass
club soda (club soda needs to be fresh, this won’t work if it’s flat)

1. Cut raisins in half.
2. Pour the club soda in the glass.
3. Drop in half of a raisin.
4. Wait at least 20 to 30 seconds and watch what happens to the raisin. (The raisin should rise and fall or ‘dancing’.)

Why is this happening?
The reason why the raisin floats to the top is because the bubbles stick to the sides of the raisin and make it more buoyant. Buoyant means that something floats more easily. The bubbles make the raising float the way a life jacket makes a person float.

Fun fact: Raisin varieties depend on the type of grape used, and are made in a variety of sizes and colors including green, black, blue, purple, and yellow. Raisins are sweet due to their high concentration of sugars.

We would love to hear what you discovered from this experiment by leaving a comment.


Information provided by and Wikipedia
Experiment credits


Knowledge Nugget–September 23

Today is KidzWorld Watermark so try doing this cool water experiment that teaches capillary action. You need 3 simple items you have in your kitchen.

Escaping Water

What you need
a glass of water
an empty glass
paper towels

1. Twist a couple of pieces of paper towels together until it forms something that looks like a piece of rope, this will be the ‘wick’ that will absorb and transfer the water.
2. Place one end of the paper towels into the glass filled with water and the other into the empty glass.
3. Watch what happens (this experiment takes a little bit of patience).

What’s happening?
Your paper towel rope (wick) starts getting wet, after a few minutes you will notice that the empty glass is starting to fill the water, it keeps filling until there is an even amount of water in each glass, how does that happen?

This process is called ‘capillary action’, the water uses this process to move along the tiny gaps in the fiber of the paper towels. It occurs due to the adhesive force between the water and the paper towel being stronger than the cohesive forces inside the water itself. This process can also be seen in plants where moisture travels from root to the rest of the plant.

We would love to hear what you discovered from this experiment by leaving a comment.


Experiment credits