7TH GRADE SCIENCE

CRAYFISH PRE LAB

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CRAYFISH PRE LAB
CRAYFISH LAB
CRAYFISH PICTURES
CRAYFISH INFORMATION PAGE
WRITING ASSIGNMENTS.
CLAM DISSECTION LAB
MR.FOX EARTHSCIENCE BELOW
child labor

 1)HOW MANY DIFFERENT SPECIES OF CRAYFISH ARE THERE IN NORTH AMERICA? AND WHERE  ARE MOST SPECIES FOUND IN NORTH AMERICA?
 
2)  ABOUT HOW LONG IN INCHES ARE CRAYFISH?
 
3) WHERE IS THE LARGEST CRAYFISH FOUND IN THE WORLD AND HOW MUCH DOES IT WEIGH?
 
4) HOW MANY PAIRS OF SENSORY ANTENNAE DOES THE CRAYFISH HAVE?
 
5) WHAT IS ANOTHER NAME FOR THE CLAWS ON THE CRAYFISH  AND WHAT ARE THERE FUNCTIONS?
 
6) CAN THE SWIMMERETS BE REGENERATED?
 
7) DEFINE THE TERMS EXOSKELETON AND MOLTING AND HOW TO THEY RELATE TO THE CRAYFISH?
 
8)WHEN ARE CRAYFISH MOST ACTIVE?
 
9)  WHAT DO CRAYFISH FEED ON AND HOW LONG IS THERE LIFESPAN?
 
10)  DESCRIBE THE GENERAL MOVEMENT OF THE CRAYFISH?
 
11)THE CRAYFISH LIVES A SHORT LIFE. WHY IS HIGH VOLUME REPRODUCTION SO IMPORTANT TO THIS SPECIES?
 
12)WHAT DOES THE TERM " IN BERRY" MEAN IN CRAYFISH REPRODUCTION?
 
13) WHAT ARE SOME NATURAL PREDATORS OF THE CRAYFISH?
 
14) DRAW THE CRAYFISH AND LABEL THE EXTERNAL PARTS OF THE CRAYFISH. DORSAL AND VENTRAL VIEW.
 

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metamorphic rocks click here

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