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4th Grade PSSA Vocab

Across
Information that is known to be true
When living things use oxygen
To begin to grow
An organism that uses or eats something it does not make
Something that cannot be replaced once they've been used
The surroundings that influence living things
Studying the natural world by using inquiry and experimentation
Something found in in moving water
Something found in still water
Down
An organism that competes with humans for resources
Water that soaks into the soil and is found in underground aquifers
The land from which water runs off and drains into larger bodies of water
An underground layer of soil and stone that contains water
Energy or materials found in nature that will be replenished over time
Organisms with chlorophyll use the suns energy, water and carbon dioxide to make their food
A community of living organisms and their surroundings
A representation of something that helps us understand it better
A tool that compares one thing to another by using measurement
Any device used to help humans do work
Organism that makes its own food
Land where water has a greater affect than another factor on the lands soil, plants and animals.
A group of objects that work together