Thermite Reaction - Smash! Bang! Boom!

You've probably heard of rubbing two sticks together to make fire...but who would think of using large steel ball bearings to make fire?


Let's have a look on the video below.



A Texas-based chemistry professor recently made a "smashing" discovery when he wrapped two rusty, high-density, steel spheres with aluminium foil. Smashing the two together resulted in the release of heat energy along with a surprising bang and spark. This reaction between the rust (iron oxide) and the aluminium graphically illustrated the chemistry of the classic thermite reaction.

School Trip to Dusun Eco Park~

Found some species of plants there.

This absolutely amazed me!

It was the most enjoyable and unforgettable trip ever! ^^

Balloon Expansion

Is there a way to see air changing? Sure, there are clouds and fog, but those are particles of water. Does anything happen to air when it gets cooled or heated? We've come up with a great way to see how air changes when it gets hotter and colder. You can do it all with just a few things you probably already have in your house!

Materials

• Glass bottle
• Balloon
• Hot plate

Steps

1. Stretch the opening of the balloon around the open end of the bottle.

2. Set the bottle on the hot plate.

3. Give the bottle and balloon apparatus a few moments to get warm. This may take a while, but you won't want to take your eyes off of the balloon.

4. Once the bottle is warm, what happens to the balloon? Wow! It's filling with air. But how?

How does it work?
So what made the balloon begin to fill with air? We could be wrong here, but we're pretty sure that there isn't a tiny person in there blowing as hard as he can. Instead, you are seeing the expansion of air. Unlike water, which expands when it is cooled, air expands when it is heated. Since the bottle was full of air when you stretched the balloon over it, it only had one place to go when it began expanding... into the balloon!

Here a video showing the experiment, enjoy it!

Different Parts Of A Plant

Living things and non-living things

The happiest moment in school

All the teachers in my current school, SJK(C) Chung Wah.

We had successfully done our "kem motivasi" for the Year 6 pupils.

We made great efforts in order to complete our mural! 

We even joined to go for trips when holidays~