Invasive Species Word Search
This invasive species puzzle names some of the worst offenders in North America and beyond: kudzu, the zebra mussel, the cane toad, the Burmese python, the lionfish and the starling, and how they travel, in ballast water, the aquarium trade and the firewood people carry.
An introduced species becomes invasive when it spreads and causes harm, usually because it left its predators and diseases behind. Cane toads were brought to Queensland, Australia, in 1935 to eat beetles in the sugar cane fields. They ignored the beetles, and their poison now kills the native snakes, lizards and quolls that try to eat them. Kudzu was planted across the American South in the 1930s to hold soil against erosion and now covers whole hillsides.
Zebra mussels reached the Great Lakes in the ballast water of ships from Europe and were first found in Lake St Clair in 1988. They clog water intake pipes and filter out so much plankton that native mussels go hungry. Starlings in North America trace back to about sixty birds set loose in Central Park, New York, in 1890; their descendants now live across the continent, from Alaska to Mexico.
Free Invasive Species Word Search Online Game
Play the Invasive Species word search in your browser, on your own or head to head against a friend in real time. Nothing to install and no account needed – send someone the link and you are both looking at the same grid.
Invasive Species Word Search Printable Puzzles
Three sheets to choose from, free to print or download as a PDF. Pick a difficulty below, or open the printable Invasive Species word search page to see all three together, generate a fresh grid, and check the full word list.
Hard
15x15 grid, up to 23 hidden words
Print or Download pdfMedium
12x12 grid, up to 15 hidden words
Print or Download pdfEasy
10x10 grid, 5 words across and down
Print or Download pdf
Puzzle Vocabulary Words
Below you can see all possible words that the topic Invasive Species has.
Depends on difficulty level you select in the game amount of words hidden in the puzzle will be different.
In Easy game you have to find up to 5 words, medium game can have up to 15 words and hard puzzle can have up to 23 words.
Every time you start a new game - our word search generator will pick random words to build the puzzle.
- Aquarium
- Asian Carp
- Ballast Water
- Biocontrol
- Bullfrog
- Burmese Python
- Cane Toad
- Cheatgrass
- Ecosystem
- Eradicate
- Feral Hog
- Fire Ant
- Firewood
- Hitchhiker
- Hull
- Hydrilla
- Iguana
- Inspection
- Introduced
- Invasive
- Japanese Beetle
- Kudzu
- Lionfish
- Loosestrife
- Mongoose
- Native
- Nutria
- Outbreak
- Outcompete
- Pathway
- Pest
- Possum
- Quarantine
- Rabbit
- Seeds
- Snakehead
- Spread
- Starling
- Tumbleweed
- Zebra Mussel