Grasslands- https://nearpod.com/s/science/3rd-grade/ecosystems-grasslands-L379497

Polar lands- https://kids.nationalgeographic.com/explore/nature/habitats/polar/#emperor-penguin-chicks.jpg

Rainforest- https://www.slideshare.net/aquadante/rainforest-interactive-for-3rd-grade

Saltwater- https://nearpod.com/s/science/3rd-grade/saltwater-ecosystems-L379514

Freshwater- https://nearpod.com/s/science/3rd-grade/freshwater-ecosystems-L379528

Desert- https://www.ducksters.com/science/ecosystems/desert_biome.php  and https://www.ducksters.com/geography/deserts.php

Forests- https://wiki.kidzsearch.com/wiki/Forest