science quiz

The most beautiful part of the plant is

• leaves

• Stem

• Root

• Flower

Paheli bought some vegetables such as french beans, lady's finger, green chilies, brinjals, and potatoes all mixed in a bag. Which of the following methods of separation would be most appropriate for her to separate them?

• Hand-picking

• Winnowing

• Threshing

• Sieving

A solution of salt is a ______________________.

• Compound

• Homogeneous solution

• Heterogeneous solution

• Element

The state of matter has a definite volume but no definite shape.

• Gas

• Solid

• Mixture

• Liquid

If a substance can be beaten into a thin sheet, it is called

• Brittle

• Ductile

• Malleable

• Good conductor

Paheli asked for a glass of water from Boojha. He gave her a glass of ice-cold water. Paheli observed some water droplets on the outer surface of the glass and asked Boojha how these droplets of water were formed? Which of the following should be Boojha's answer?

• Evaporation of water from the glass.

• Evaporation of atmospheric water vapor.

• Water that seeped out from the glass.

• Condensation of atmospheric water vapor.

Leaves are green due to the presence of a green pigment called

• Leucoplasts

• Hydrophytes

• Chlorophyll

• Xanthophylls

Butter is separated from curd by

• Churning

• Heating

• Filtration

• Evaporation

The part of the plant above the ground is called

• Branch system

• Foliage system

• Root system

• Shoot system

Tiny pores on the lower surface of leaves are called

• Stomata

• Guard cell

• Lenticels

• Bores