Cool Science Experiments For Kids

Hey kids. Here comes another question.

Everytime when we touch an ice, it feels sticky. Why?
Is it because…
A. The ice melts very fast
B. The ice has glue on it (You must be joking ;))
C. The ice is cold, our hands is hot
D. Our hands is sticky

The answer is C. The ice is cold, our hands is hot

Now, let me explains why…

The ice allows use to leave it alone, but is just that we ‘like’ to stick with the ice.

Sounds funny?!!!

Well to the ice, our body temparature is very hot. Remember ice melting point is 32°F or 0°C. While our temparature is 98.6°F or 37°C. The moment our hands touch an ice, heat energy from our fingers will be absorbed by the ice. The surface that our fingers touch will melt a little.

Very quicky the heat energy will travel into the ice. The water(which was melted when our fingers touch the ice) on the surface of ice quicky become frozen again. The process of melting and frozen on the surface of ice creates the feeling of stickyness.

Unless we hold on to an ice without letting it go, allowing the heat energy from our hands keep flowing into the ice. This will make ice melts slowly and the sticky feeling will dissapear.

Hey, kids… What do u think?

Human greatest discovery are…
A. Food
B. Fire
C. Water
D. Electricity
E. All of the above

Think for 10 seconds and tell me what is your answer.

(Drumming sound….)The moment of truth…

The answer is… B. Fire

Camp Fire

According to Dictionary.com , discovery is an act or an instance of discovering.

Until now, scholars agree that humans greatest discovery is FIRE. Ever since humans learnt how to use fire to get rid of wild beast and they don’t have to live in the cave anymore.

So, humans started to live on flat ground, they started to build houses on their own. Besides, fire helps to cook food, fire also helps to make a lot tool for farming, hunting, cutting.

In conclusion, we can say that because of fire, humans were able to achieve the civilazation we enjoy today!