Learning Task 3: With the assistance of your family members, read the procedures below. Perform what is being asked in each task. Materials needed Procedure Observation Technique in Observe what hap separating mixtures pan? 1. Wet rug 1 cup of water, Mix the water and 1/2 cup of sand. the sand cheesecloth 2 2. Pass the mixture container through a cheese cloth. 1. Scrub the table Wooden table using a wet cloth or rug 2. Observe what happened to the moist on table after 3 to 5 minutes 3 tablespoon of rice 1. Mix 3 tablespoon of grain. 4 tablespoon rice grains and 4 of flour, plate. tablespoon of flour container sieve/ in a plate strainer 2. Sift /sieve the mix- ture 1 cup of sand, 3 cups of water. small container 1. Mix 1 cup of sand to 3 cups of water in a container 2. Pour the water from the glass. 1. Mix the nail, coins and small rocks. 2. Use of magnet to separate the mixture Nails, coin, small rocks, magnet Guide Questions: 1. What are the techniques in separating mixtures? 2. What are examples of mixtures that can be separated through decanta- tion, filtration, sieving, evaporation and using magnet?
Answers & Comments
Answer:
Observation:
the cheese cloth filtrated the sand out of the water
Technique:
filtration
Observation:
The water evaporated after 5 minutes
Technique:
Heat
Observation:
The flour got seperated from the rice grains
Technique:
sieving
Observation:
the sand settled at the bottom
Technique:
Decantation
Observation:
the nails got seperated from the coins
Technique:
use of magnet or using magnet
Guide question:
ANSWER:
1. Filtration, decantation, use of magnet, sieving, use of heat? Or heat
2. Decantation: Sand from water/water from sand
filtration: water from sand
Sieving:
flour from rice grains
Evaporation: Water (any liquid substance) and heat
Use of magnet: anything magnetic and non magnetic like ballpen from nails
correct me if im wrong but hope this helps
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