Loading...
Cool Chemistry

Science is a part of our everyday lives

This title is a part of lyrics of the theme song which we listen every time in my BKC, Cool chemistry. The tune, especially, repeating some words of science is stuck in our heads. Please check it out! 

Also, I've attached some links that I believe that these videos are good for preschoolers to let them know what science and chemistry are.

  1. What is Science? 
  2. Importance of chemistry in Live, Everyday Uses

 

We cannot live without...

One of the parts of our everyday lives is...

Water.

Water is the most basic and important matter for us. Also, there're many things that kids don't know about water.

Therefore, we have learned about it since we started this season of BKC such as solution (dissolvable or not), absorption and repellent, a relation between oil and water, and evaporation and water cycle which are we just learned this week.

Here’s some pictures of our BKC.

What does dissolve in water?

It was a field trip day! First of all, kids learned solution, solvent, and solute. Then, we headed to Emery Barnes Park. Before kids tried a experiment, they hypothesized which solute does dissolve in water. What we had was:

  • Food colour (This was an example)
  • Salt
  • Sugar
  • Flour
  • Pepper 

The hypothesis and result are on the picture. ♡(Heart mark) means "Water loving." In other wards, it dissolves in water.

Our buddies expected every solvents dissolve. Therefore, an interesting occurrence happend. When a kid who had pepper was putting it into the water and stirring for a while, he suddenly stopped and said

"Mmmm... It doesn't dissolve. I have to stir more more more!!"

He tried to stir a lot, but it didn't melt, then they realized pepper doesn't dissolve, and learned that there are two types of solutes.

 

Which material does absorb?

Another day, kids got to kew absorption and repellent. After seeing an example of absorption of a sponge, buddies guessed the hypothesis and tried to put some coloured drops on many materials and examined which material it does absorb or not. 

Kids wondered that a piece of paper does absorb, but a piece of cooking paper doesn't do. That's good recognition! Especially, a piece of cooking paper repelled well, so that kids liked to play with it.

Then, we made coffee filter arts! As you know, the filters absorbs water. This is an easy but fun art that you can play with kids at home.

  1. If you need, cut it out.
  2. Drawing or colouring on a coffee filter with WASHABLE markers.
  3. Spray or put water with paint brush.
  4. Enjoying permeating colours slowly through the filter.
  5. Dry it.

This time, we made autumn leaves, but you can make whatever you want even a dress for a paper doll.

 

Why do we use detergent when we wash dishes?

When teacher Yuka asked this question, buddies answered “Bacause dishes become clean!” That’s true. I asked them again, “Why does detergent make dishes clean?” They started wondering.

The experiments of this time was that dropping colour water into oil. Their hypothesis was oil dissolved in water which means oil is water loving.

After they tried the experiment, kids realized it doesn’t mix even shakes them! However, one we added a small amount of dish detergent, they were mixed. That was like a magic! Also, we washed our oily hands without soap first, it did work at all, but we used soap, our hands got clean. From these experiences, buddies understood oil was water fearing.

Lastly, we made an art which is used the relation between oil and water. After drawing with oil pastels, painting with water colours which are mixed in a bigger amount of water compared to water colours so that the colours repel the parts of oil pastels. That’s fun activity! If you draw a picture which is like in the ocean, our of space, or fireworks, that would be so beautiful and more fun! You should try it! 

Where does rain come from?

It's almost the rainy season in Vancouver, so it's a good opportunity to learn about the Water Cycle.

This week, we learned evaporation and the water cycle. The lyrics of the song we listen every week which the link is at top of the page is included the word of evaporation. Therefore, kids knew the word. Then, when teacher Yuka asked “Where does water come from?”, buddies replied “it comes from pipes” You have a point but it’s not completely correct.

After watching a short video about the water cycle, we made a chart with friends. When a buddy put a droplet, he named ”This is Mr. Funny silly droplet!” to his.

Next, we tried some experiments about evaporation, condensation, and precipitation. The most hit experiment with kids was “HOW CLOUDS MAKE RAIN.” Buddies rained a lot of colours of rain into a jar! 

Lastly, I asked them the same question I asked at the beginning. “Where does water come from?” Kids replied “From the ocean!!!😤😤😤.” Yay! That’s perfect answer! Water goes around!

 

 

Through the science Big Kids Club, they have learned a lot of things about them.

In the second half, we are going to move on to another theme from water, then focus on chemical reactions! Chemistry is cool and fun! Also, I bet that chemical experiments make your kids fascinated!!

Please come join my BKC on Tuesdays 🙂