Hello kids! Today we will study about the different techniques kung paano mapaghiwalay yung mga mixtures with teacher Biv. Para sa unang technique, kailangan natin ng salt, water, and heat from the gas stove.
Kung mapapansin ninyo dito kung ang salt ay nahiwalay sa tubig, nag-evaporate yung water, nag-turn into gas ang natira yung salt. This is what we call the process of evaporation. Evaporation is the process of separating mixtures that involves heating until the solvent evaporates in the air, then turn into gas. It leaves behind the solid residue like what happens sa salt and water. Mag-evaporate yung water at natira yung salt.
Next naman, need natin ng oil and water. Kung mapapansin ninyo yung oil, nung minix natin, napunta siya sa upper layer than the water. Yun yung kailangan natin is separate. Ang teknik na ito ay tinatawag na decantation.
Ang decantation is a process of separating yung two non-mixing liquid. Yung liquid na hindi naman nag-mix totally. Halimbawa nga yung water and oil na hindi naman nag-mix completely.
Masaseparate natin sila by pulling out yung clear upper layer ng liquid. Another example is yung kerosene at water. The process is called decantation. For the next technique naman, kailangan natin yung pangsala, strain, and flour powder.
Dito, sinasala natin yung maliliit na particles sa pamamagitan ng salaan na tinatawag, or sieve sa English, na merong maliliit na butas or holes. Ang tawag sa process na ito ay sieving. Sebing ang tawag kung saan sinaseparate yung mga particles of solid na meron mga iba't iba, size, or sukat. Ang sieve ang ginagamit sa pag-sieve ng mga flour halimbawa has a very small holes or strain na tinatawag.
na ginagamit natin sa pangsala. Another example nito yung sa construction. Yung gravel sinaseparate from the sand. Halimbawa. Halimbawa rin sa bahay, pang nagluluto tayo ng noodles, sinaseparate natin sa water.
For the next technique naman, meron tayo dito magnet na tinatawag. We use magnet naman para mag-detach yung mga non-magnetic materials doon sa mga magnetic materials tulad ng pako na na-attract nung magnet na nahiwalay doon sa mga debris nung kahoy. Ang tawag sa technique na ito, Ito ay using magnet.
It separates the mixtures using magnets to attract magnetic materials. It detaches yung mga non-magnetic materials with those who are magnetic. Halimbawa yung sapako na nahiwalay doon sa kahoy na mga debris.
Na-attract sa mga magnet ay yung mga metal materials made of iron. For the next technique naman, kailangan natin na mix powder coffee with water. You will observe, habang sinasalin yung coffee, dun sa glass, meron tayong filter paper na tinatawag.
Dito, sinasala yung coffee powder or yung diptease ng coffee sa filter paper. Para ang matitira lang ay yung liquid. Itong teknik na to ay tinatawag na filtering.
Filtering is a method kung saan sinaseparate yung insoluble solid o yung hindi natunaw na solid sa liquid. It is when a mixture of coffee and water is filtered. The coffee, yung powder, nag-stay siya behind the coffee.
And the filter, paper. And yung water nag-passes. And it becomes filtrate.
Yun yung example nung filtering. Now, let's check if natutunan nyo ang mga different techniques on how to separate mixtures. We will have an activity.
Are you ready? This is what you will do. You will identify at sasabihin ninyo kung anong techniques ang pwedeng gamitin sa pag-separate ng mga sumusunod na mixture.
Do you understand? Now let's start. Number 1 is Gravel and Sand.
Time start now. 5, 4, 3, 2, 1. The answer is sebing. Very good. Number 2 is kerosene and water. Time start now.
5, 4, 3, 2, 1. The answer is decantation. Correct. Number 3 is nail and stones.
Time start now. 5, 4, 3, 2, 1. The answer is using a magnet. Very good.
Number 4, salt and water. Time start now. 5, 4, 3, 2, 1. The answer is evaporation.
And for the last, number five, liquid coffee. Five, four, three, two, one. The answer is filtering.
How many got five? Very good! Today, we learned about the different techniques of separating mixtures.
Meron tayo, Hope you learned today. Till next time, with Teacher Dean.