the chemical process by which a plant produces food
photosynthesis
Massachusetts
Boston
the study of outer space and all that it contains
astronomy
Israel
Jerusalem
the smallest blood vessels
capillaries
tropism
Virginia
Richmond
dark patches on the sun's photosphere
sunspots
Baghdad
Iraq
the type of blood cell which fights off infection
white blood cells
the pigment that gives green plants their color
chlorophyll
California
Sacramento
stars that outline a picture in the sky
constellation
China
Beijing
the liquid part of your blood
plasma
the pores on the underside of a leaf
stomata
Florida
Tallahassee
an area that contains no air
vacuum
South Korea
Seoul
the vitamin that helps the blood to clot
vitamin K
the scientist who studies plants
botanist
Idaho
Boise
the brightest star in the night sky
Sirius
Syria
Damascus
the ability to do work
energy