A Macroinvertebrate Search

ALDERFLY
AQUATICWORMS
CADDISFLY
CRANEFLY
CRAYFISH
DAMSELFLY
DOBSONFLY
DRAGONFLY
LEECH
MAYFLY
MIDGE
MOSQUITOLARVA
MUSSEL
RIFFLEBEETLE
SALMONFLY
SIDESWIMMER
SNAIL
STONEFLY
WATERPENNY

Macroinvertebrates are a diverse group of animals, ranging from insects and crustaceans to molluscs and worms. They have been around for about 500 million years and some were even living in our waterways before the dinosaurs! Different aquatic macroinvertebrates have different tolerance levels to water pollution. Some water critters are sensitive to pollution, which means if the waterway was to become polluted they will die or move elsewhere. Other critters are tolerant to pollution, meaning they can survive in polluted water. By sampling a waterway for macroinvertebrates and identifying what’s there you will get a good indication of water quality and habitat condition. This word search contains the names of the different kinds of macroinvertebrate one might find in a typical freshwater stream. Good Luck!

Try to find all 19 words on this board.

B V V M W Y L F N O S B O D W
T E S M R O W C I T A U Q A B
W L I X Y L F E N A R C V M D
A L D Y T Q T C Y D R R P S E
T A E L G T R E J A A I B E Y
E J S F X A G Z Y L L F Y L L
R M W N B D R F O E D F L F F
P N I O I N I T U E E L F L S
E L M M D S I U R C R E N Y I
N E M L H U Q I U H F B O F D
N S E A Q I T D R U L E G W D
Y S R S T O N E F L Y E A O A
W U O Q I S N A I L M T R M C
H M A Y F L Y J K Y L L D U W
H Q A H G I P Q G T W E I S F
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Answer Key for A Macroinvertebrate Search

X
Y
123456789101112131415
1# # # # # Y L F N O S B O D #
2# # S M R O W C I T A U Q A #
3W # I # Y L F E N A R C V M #
4A # D Y # # # # # # R R # S #
5T # E L # # # E # A A I # E Y
6E # S F # # G # Y L L F Y L L
7R # W N # D # F O E D F L F F
8P # I O I # I T # E E L F L S
9E L M M # S I # # C R E N Y I
10N E M L H U # # # H F B O # D
11N S E A Q # # # # # L E G # D
12Y S R S T O N E F L Y E A # A
13# U O # # S N A I L # T R # C
14# M A Y F L Y # # # # L D # #
15# # # # # # # # # # # E # # #
Word X Y Direction
ALDERFLY  115s
AQUATICWORMS  142w
CADDISFLY  1513n
CRANEFLY  123w
CRAYFISH  123sw
DAMSELFLY  141s
DOBSONFLY  141w
DRAGONFLY  1314n
LEECH  106s
MAYFLY  214e
MIDGE  49ne
MOSQUITOLARVA  88ne
MUSSEL  214n
RIFFLEBEETLE  124s
SALMONFLY  412n
SIDESWIMMER  32s
SNAIL  613e
STONEFLY  412e
WATERPENNY  13s