Science

Our ___________ can respire anaerobically.

• Skin

• Nerve

• Blood

• Muscle

Wind pipe is called

• Trachea

• Oesophagus

• Nasal Cavity

• Bronchi

When base is added to turmeric it changes

• Blue

• Red

• Yellow

• Green

Burning of paper is a

• Physical change

• Chemical change

• Both

• None

Acetic acid is found in

• Lime water

• Vinegar

• Orange

• Curd

The centre of a cyclone is a

• Calm area

• Hot area

• Cold area

• Dangerous area

Acids are soapy to touch

• True

• False

The natural dye extracted from lichens is in which colour?

• Red

• Blue

• Purple

• Green

The rubber sheet in the breathing model is

• Diaphram

• Nostrils

• Muscle

• Nasal Cavity

The openings on the sides of the body of a cockroach is called

• Spiracles

• Gills

• Trachea

• Lungs