MSA vol.1 Analogy

Beaming of light rays: Reflection:: Bending of light rays:

Refraction

Barometer : Pressure:: Hygrometer:

Humidity

Pores: Sweat:: Stomata:

Oxygen

Henry Ford: automobile:: Robert Fulton:

Steamboat

Transparent body: Light passes through:: :Casts a shadow

Opaque body

Northern Lights: Aurora borealis:: Southern Lights:

Aurora australis

Volta: First dry cell:: Ohm:

Current electricity

Crustacean: Crab:: Protozoan :

Jellyfish

Carbon: C:: : Ca

Calcium

Vitamin A: Night blindness:: Vitamin D:

Rickets

Tissue: Organ:: Man:

Community

Farthest point: Apogee: : Closest point :

Perigee

Thyroxine: Thyroid : : Insulin :

Pancreas

Air pollution: Soot:: Water Pollution:

Oil

Basalt: Igneous :: : Metamorphic

Marble