Posts Tagged ‘chemistry practical’

Let us get some basic stuff together and make a hydrogen balloon to demonstrate in the class. The main idea is to collect hydrogen gas from an acid-metal reaction and show the students the safest way to do it.



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As much as possible, science teachers would want to do activities in the class, which are exciting but less expensive. Especially when the kids are asked to bring the materials needed and turned out to be difficult to find or too much for the wallet, the thrill to do it would eventually fade.

sample of a commercial Lava lamp (photo from yahoo images)

There are many lava lamps available in the market but why not make your own and use of materials that one can easily grab in the cupboard or take out from the medicine drawer or buy from the nearest supermarket. Today I am sharing to you how to make a LAVA LAMP which I have done myself several times in science club activities or classroom demonstrations. (more…)

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One of the most challenging tasks of a science teacher in a chemistry class is how to show that gases exist and it can be collected from simple reactions. Most common amongst these gases are OXYGEN, HYDROGEN, and CARBON DIOXIDE.

Yet there is a simple activity that could be done as a demo or class experiment to confirm those scientific explanation about acid-metal reaction.  Be sure the materials are readily available in your laboratory. There are other processes to produce these gases but these are the ones helpful and practical in a school setting. (more…)

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How can you get salt from a rock salt or seawater? This is a simple classroom demo to show that the common salt in the kitchen is mined from underground or can be taken out from the seawater. (more…)

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