science_grade 6_PA1

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This separation technique is based on the differences of the boiling point of the substance in the mixture

• sedimentation

• distillation

• filtration

• decantation

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Which set of substances is not used for making fibres?

• silk, chemicals

• yak hair, camel hair

• husk, bones

• flax, wool

Which of the following statement is incorrect about respiration?

• Animals that live on land breathe through their lungs

• Animals like fish that live in water use specials organs called gills

• Earthworms breathe through their skin

• Insects breathe through small holes called nostrils

Cotton

• This fibre is obtained from the stem of the plant

• This fibre is obtained from the leaf of the plant

• This fibre is obtained from the bast of the plant

• This fibre is obtained from the fruit of the plant

Four mixtures are given below

(i) green peas and chick peas

(ii) grains and husk

(iii) rice flakes and rice grains

(iv) sand and sugar

Which of the above mixtures can be separated by winnowing?

• (i) and (ii)

• (ii) and (iii)

• (i) and (iii)

• (iii) and (iv)