Science Summative 7
Quiz by Jeremiah Elizalde Cena
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- Q1
The different methods of separating mixtures are very helpful in our daily lives. Which of the following methods use a sieve to separate the finer materials from the bigger components of the mixture?
evaporation
sieving
distillation
decantation
300s - Q2
Filtration removes the impurities in a mixture using a filter paper or a piece ofcloth. Which mixture will require the use of filtration method?
separating calamansi extract from its seeds
water and oil
sorting different seeds
sand and pebbles
60s - Q3
Separating mixtures give us different useful products such as salt from seawater. Which of the following method is commonly used to obtain salt fromseawater?
decantation
filtration
use of magnets
evaporation
60s - Q4
Solution is a combination of liquid and soluble solid. How will you get the salt from a solution?
pick the salt from the solution
extract the solution
filter the solution
heat and evaporate the solution
300s - Q5
Separating mixtures can be done through different ways. Which of the following mixtures is best to be separated through hand picking?
oil and vinegar
salt and mongo seeds
yellow and green mangoes
nails and pins
300s - Q6
Your mother asked you to cook rice for dinner. You observe the small stones inthe rice grains. Which of the following methods will you use to separate the small stones from the grains of rice easily?
sieving
filtration
handpicking
decantation
300s - Q7
During summer season, children love to spend their time swimming in the pool. We cannot avoid impurities like leaves to mix with the water in the pool. Which of the following technique is best used in removing the leaves from the swimming pool?
filtration
handpicking
sieving
decantation
300s - Q8
Rock salt is taken from the seawater. How do we separate it from water? You can separate it by .
pouring the water off
using a magnet
evaporating the water
decanting it
300s - Q9
Why is filtration not applicable in separating the components of a liquid solution?
Filtration cannot filter liquid components.
Liquid solutions do not require filtration in separating their components.
Components of liquid solutions are very small; thus, they can passthrough the filter.
Filtration is not for separating solutions.
300s - Q10
Your brother accidentally mixed the iron filings and salt. Which of the following ways will he do to recover the iron filings from the mixture?
He will use a magnet to get the iron filings.
He will use evaporation
He will use decantation.
He will filter the mixture.
300s