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.

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

X
Y
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1# # # # # Y L F L E S M A D #
2# A Q U A T I C W O R M S # #
3# Y V Y L F E N O T S I # # #
4# L # R # E # # # # D D # # Y
5# F # I A # E # # E # G # N #
6D S # F # L # C S # # E N # #
7O I A F # # O W H # # E # D C
8B D A L # # I T L # P # R # R
9S D L E M M # I I R # A # Y A
10O A D B M O A # E U G # # L N
11N C E E U N N T # O Q # # F E
12F # R E S # A F N # # S # Y F
13L # F T S W # F L # # # O A L
14Y # L L E # L # # Y # # # M Y
15# # Y E L Y # C R A Y F I S H
Word X Y Direction
ALDERFLY  38s
AQUATICWORMS  22e
CADDISFLY  211n
CRANEFLY  157s
CRAYFISH  815e
DAMSELFLY  141w
DOBSONFLY  16s
DRAGONFLY  147sw
LEECH  53se
MAYFLY  1414n
MIDGE  122s
MOSQUITOLARVA  88nw
MUSSEL  510s
RIFFLEBEETLE  44s
SALMONFLY  26se
SIDESWIMMER  132sw
SNAIL  512ne
STONEFLY  113w
WATERPENNY  613ne